Synopsis:
This page shows the C++ executable run against this project's own tree, in the 11
invocations the page structure fixes.
-
Every block below is captured output. Nothing is paraphrased, reconstructed from the
specification, or edited after capture.
-
Each block takes the same six parts - purpose, echoed command line, at most 14
output lines, the run summary when the excerpt withheld it, stderr lines, and the
total line count with the exit code.
The set is chosen so that a reader can compare it against another implementation's.
- Every pattern stays inside the portable subset, and none that matches turns on which regex engine an implementation names.
- A pattern naming one language's construct appears only in an invocation rooted where that language's files sit.
- Section 4 says which parts must agree across implementations and which are each run's own.
The capture is dated, and the date is doing work.
- Seven invocations count files in this project, so their output moves when a document is added or removed.
- A page whose counts disagree with a fresh run is stale rather than wrong, and recapturing is one command.
- A superseded capture is deleted rather than kept, since two dated captures invite a comparison over trees that never matched.
1. What the Demonstration Runs
Cpp_TextFinder_Demo.ixx runs the built executable against this project's own
tree, rooted at Spec_driven_TextFinder/, and shows the 11 invocations
Page_Structure.md §7.1 fixes. Seven of them supply
-P . -p "md, ixx, cpp", so each search covers the project's documents together
with the C++ sources; the other four are this implementation's own, two rooted in its
component directories, one in its structure document, and one asking for help.
Every block below is captured output. Nothing on this page is paraphrased, reconstructed
from the specification, or edited after capture, per Page_Structure.md §7.3. The
capture is dated, and Section 5 says what that means for a reader comparing it against a
fresh run.
Each block takes the same six parts, per Page_Structure.md §7.2: the purpose in one
or two lines, the command line echoed as $ <executable> <arguments>,
at most 14 output lines followed by a ... N more line where N is
the number withheld, the run summary of Spec_TextFinder.md §3.6 when that excerpt
withheld it, each stderr line prefixed [stderr], and the total line count with
the exit code. The count is of the whole run rather than of the excerpt, so N
plus 14 equals it whenever a ... N more line appears.
The fifth part is the newest and exists because of where §3.6 puts its line. The
summary is the last thing a traversing run writes, so on every invocation emitting more
than 14 lines the excerpt ends before reaching it, and a block that stopped there would
withhold the one line reporting what the run reached. It is shown after the
... N more line and counted among the lines that line withholds.
A divergence this page carried for several revisions has been retired. §7.1 fixed a set
of six invocations while this driver ran eight, and the table now fixes eleven - the set
all three drivers run. This driver gained the three it lacked: two roots, an unopenable
root, and the help text. The blocks below are still what the executable actually produced,
since §7.3 forbids reconstructing a result from a document.
Two rules govern which patterns a demonstration may use, and this set satisfies both.
Every pattern stays inside the portable subset of Spec_TextFinder.md §6.1, and none of
the patterns that match uses ., a character class, or a class escape, so none
turns on which engine an implementation names. And a pattern naming a construct of one
language appears only where it searches that language: invocations 1 through 7 draw on
too large, an announcement §3.4 fixes, and
Spec_TextFinder.md, a document every implementation searches, while
^export and import are confined to invocations 8 and 9, whose
roots hold C++ files and nothing else.
2. The Header
The driver writes four fields before the first block: the date of the capture, the platform
path of the executable, the search root, and the extension list. This is the whole of the
header. §7.2 once called for a fifth naming the platform, and named four; it now calls
for the four every driver writes, and leaves the platform to the prose that needs it.
Cpp_TextFinder demonstration
date: 2026-09-15
executable: C:/github/JimFawcett/NewSite/Code/Projects/Spec_driven_TextFinder/Cpp_Spec_driven_TextFinder/build/Cpp_Spec_driven_TextFinder_Entry/Cpp_TextFinder.exe
root: C:/github/JimFawcett/NewSite/Code/Projects/Spec_driven_TextFinder
extensions: "md, ixx, cpp"
The date comes from std::chrono::current_zone() rather than UTC, which would
read as the previous day late in the evening. The executable and the root are compiled in
by CMake and can be overridden by two optional arguments, so the same driver can be pointed
at another build or another tree.
3. The Eleven Blocks
3.1 No Switch at All
The bare command line of Spec_TextFinder.md §3.1. It names no work, so
Cpp_TextFinder lists the options a real invocation would start from and exits
0 without traversing. Look for the /v line: it reads false,
because this listing reports an option set in which /v was never set.
1. No switch at all. The command line names no work, so Cpp_TextFinder lists the
options a real invocation would start from and exits 0 (Spec_TextFinder.md §3.1).
$ Cpp_TextFinder
/P .
/p
/r .
/s true
/h true
/v false
/H false
/n false
/L false
9 line(s), exit 0
Nine lines, matching the nine §5.3 fixes, in §5 table order. The
/p line carries no value and no trailing space, which is the rule that lets
this text serve as a test fixture.
3.2 The Default Expression
The no-content case of §3.3: the default /r of . with
neither /n nor /L needs no file content, so every selected file
of non-zero size is reported by its path line alone and none of them is opened.
2. Default expression. The default /r of . with no /n or /L needs no file content,
so each selected file is reported by its path line alone (Spec_TextFinder.md §3.3).
$ Cpp_TextFinder -P . -p "md, ixx, cpp"
Constitution.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Fix_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline_TestDriver.cpp
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline_UnitTest.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Fix_Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav_TestDriver.cpp
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav_UnitTest.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Prompts_Fix_Spec_Cpp_TextFinder_Output.md
... 48 more
accessed 61 files, 36 directories
62 line(s), exit 0
62 lines for 61 selected files, the extra one being the run summary. What the count alone
does not show is that this invocation performed no reads: the size test ran on filesystem
metadata and nothing else, which is why this is the fastest of the 11 and why a binary file
among these paths would be reported rather than skipped.
accessed 61 files, 36 directories is the arithmetic of the no-content case laid
bare: every selected file matched, so the file count equals the number of path lines above
it. A zero-length file would break that equality - counted but blockless - and this tree
holds none among these extensions.
3.3 The Two-Level Block
The block form of §3.4 with both optional fields on: a path written once, then an
indented detail line per match carrying the line number and the line's text. The pattern
too large is one of the four announcements the specification fixes, so it
appears as a literal in the documents and in the sources of every implementation.
3. The two-level block of §3.4: a path written once, then an indented detail line
per match carrying the line number and the line's text.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "too large" -n true -L true
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Fix_Spec_Cpp_TextFinder_Dirnav.md
73 - [Spec_TextFinder.md](../../Spec_TextFinder.md) gained: symlink and non-file/non-directory root handling in §3.2; the three admission tests in §3.3 — 10 MB, no NUL byte, valid UTF-8 — with whole-file reading justified by "skipped entirely rather than searched in part"; path rendering and a four-row announcement table in §3.4 (`searched`, `skipped`, `too large`, `cannot open`) with the `/h` gating; the dotfile rule, extension case-sensitivity, the non-empty-regex requirement, and the new `/h` meaning across the `/p`, `/r`, and `/h` rows of §5; an empty-`/r` row in §5.2; and the NUL test named in §7.
80 - - **`too large` and `cannot open` ignore `/h`; `searched` and `skipped` obey it.** Item 6 suppressed announcements but item 3 wanted failures visible; silencing a 10 MB skip under the default would hide requested work that did not happen.
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Spec_Cpp_TextFinder_Dirnav.md
84 - No file announcement accompanies that block. `searched` reports a file that was read and matched nothing and `skipped` reports one a content test rejected, and in this case neither happened — every selected file matches — so the library emits neither, whatever `/h` says. A selected file of zero size produces no block and draws no announcement either. The size test still runs on filesystem metadata, so a file above the limit still draws the error announcement `too large`, and one whose metadata cannot be read still draws `cannot open`.
117 - The file count is incremented in the one place a file is examined: immediately after the `/p` test of §6 admits it and before its size is taken. Everything §3.6 excludes is therefore excluded by construction rather than by a second test — an entry refused by `/p`, a symbolic link, an entry beneath a pruned directory, an entry whose name will not render, and an entry that is neither a regular file nor a directory all fail or bypass that test and never reach the increment, though the last two draw `cannot open` on the way past. A file admitted and then announced `too large` or `cannot open` is counted, the increment standing ahead of both.
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav.ixx
264 - if (size > sizeLimit) { emit("too large " + displayPath(file)); return; }
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav_UnitTest.ixx
315 - check.equal(relative(search(root / "big.txt", commands), root), "too large big.txt",
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Prompts_Fix_Spec_Cpp_TextFinder_Output.md
33 - 1. Parent §3.4 contradicted itself in consecutive sentences — "under the default /h `true` no file announcement appears and the output holds match records alone," then "`too large` and `cannot open` are emitted whatever /h says." Both are file announcements.
58 - > 1. treat "too large" and "cannot open" as error announcements not file announcements. Make any name changes appropriate to this new definition
78 - Parent §3.4 now distinguishes **file announcements** — `searched` and `skipped`, gated on `/h` — from **error announcements** — `too large` and `cannot open`, emitted whatever `/h` says — in separate tables, which retires the self-contradiction: under the default the output holds match records and error announcements. The new names propagated to the `/h` row, the §5.1 help text, Dirnav §5 rule 6 and §8, and Entry's diagnostics section. Parent §3.4 also gained the terminator rule moved out of the Output spec: a single LF for every record and announcement on every platform, with implementations obliged to stop their runtime translating it.
... 60 more
accessed 61 files, 36 directories
74 line(s), exit 0
74 lines over 16 files: 16 path lines, 57 detail lines, and the run summary. The first path
carries two detail lines, 73 and 80, and appears once - the whole point of the two-level
form. Line 117 of Spec_Cpp_TextFinder_Dirnav.md is §8.1 of that
specification describing where the file count is incremented, which is the demonstration
finding the rule that produced its own last line.
3.4 The Same Search with /L false
The same 74 lines with the text field off, leaving the line number alone on each detail
line - the same 16 files, the same 57 matches, and the same two counts in the summary.
Comparing this block against the one above it isolates what /L controls, and
the summary's staying put shows what it does not: /n and /L select
what a detail line carries, not what the run reached.
4. The same search with /L false, leaving the line number alone on each detail line.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "too large" -n true
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Fix_Spec_Cpp_TextFinder_Dirnav.md
73
80
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Spec_Cpp_TextFinder_Dirnav.md
84
117
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav.ixx
264
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav_UnitTest.ixx
315
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Prompts_Fix_Spec_Cpp_TextFinder_Output.md
33
58
78
... 60 more
accessed 61 files, 36 directories
74 line(s), exit 0
The line count is identical, 40, and every path and every number is the same. Only the
bytes after each number changed, which is what "the fields /n and
/L select" means in practice: the gating chooses fields, not matches.
3.5 Path-Only Blocks
Which documents cite the parent specification. Neither /n nor /L,
so every block is its path line and evaluation of each file stops at its first match. The
pattern escapes the dot - Spec_TextFinder\.md - so the expression stays inside
the §6.1 subset and matches a literal filename rather than any character.
5. Which documents cite the parent specification. Neither /n nor /L, so every block
is its path line and no path is written twice.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "Spec_TextFinder\.md"
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Fix_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline_UnitTest.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Fix_Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav_UnitTest.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Prompts_Fix_Spec_Cpp_TextFinder_Output.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Prompts_Spec_Cpp_TextFinder_Output.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Spec_Cpp_TextFinder_Output.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/src/Cpp_TextFinder_Output.ixx
... 34 more
accessed 61 files, 36 directories
48 line(s), exit 0
48 lines for 47 files. No path is written twice, and no file announcement appears: under
the default /h true, the 14 selected files that matched nothing contribute
nothing at all. Block 3.7 turns that off and shows them. The summary reports the same
accessed 61 files, 36 directories as 3.2, since the same files were examined
whatever the expression found in them - which is how a reader can tell from this block alone
that 14 files were hidden rather than never reached.
3.6 One Level Deep
The same search with -s false, which searches the files directly within the
root and enters no subdirectory.
6. The same search one level deep, /s false entering no subdirectory.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "Spec_TextFinder\.md" -s false
Page_Structure.md
Project_Tree.md
Prompts_Fix_Constitution.md
Prompts_Fix_Spec_TextFinder.md
Prompts_Page_Structure.md
Prompts_Spec_TextFinder.md
README.md
Text_Tone.md
accessed 13 files, 1 directories
9 line(s), exit 0
Nine lines: eight documents at the project root and the summary, with none of the C++
sources that appeared in 3.5. Every path here lacks a /, which is the visible
signature of a one-level search. The result also shows the root of .
contributing no leading ./, per §3.4.
accessed 13 files, 1 directories is the clearest statement on this page of what
-s false does: one directory read, no descent. It is also the one count on this
page that every implementation reports alike, since all three select the same 13 documents
at the project root - which Section 4 makes the strongest row of its comparable column.
3.7 Announcements and the Resolved Option Set
-h false adds a line for each file that matched nothing - the files 3.5 left
silent - alongside the listing -v true writes ahead of the search.
7. /h false adds a line for each file that matched nothing - the files case 5 left
silent - alongside the resolved option set from /v true.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "Spec_TextFinder\.md" -h false -v true
/P .
/p md, ixx, cpp
/r Spec_TextFinder\.md
/s true
/h false
/v true
/H false
/n false
/L false
searched Constitution.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Fix_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline.ixx
... 57 more
accessed 61 files, 36 directories
71 line(s), exit 0
71 lines against 3.5's 48: nine listing lines plus 14 searched announcements
added to the same 47 paths and the same summary. The listing's /r line carries
the expression verbatim as typed, backslash included, and its /h and
/v lines report the values that produced this output.
searched Constitution.md is the first line after the listing, which shows
announcements interleaved with blocks in traversal order rather than collected at the end.
This is the one block where §3.4's partition can be checked against the program's own
count rather than against another block. Under -h false every examined file
appears exactly once, so the 47 paths plus the 14 announcements must equal the 61 the
summary reports - and they do. The summary is not an announcement and takes no part in that
partition; it reports the total the two sides add up to.
3.8 Two Roots
Two -P arguments, traversed in the order given. Each path begins with the root
whose subtree holds it, per §3.4, and the skip list prunes build/ beneath
both. This is the one invocation whose pattern names a construct of one language, so it is
held to two C++ component directories rather than let loose on the tree.
8. Two roots, traversed in the order /P gave them. Each path begins with the root
whose subtree holds it, and the skip list prunes build/ beneath both.
$ Cpp_TextFinder -P Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline -P Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output -p "ixx, cpp" -r "^export " -n true -L true
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline.ixx
3 - export module Cpp_TextFinder_Cmdline;
9 - export struct ProgramCommands {
21 - export std::expected<ProgramCommands, std::string> parse(int argc, char* argv[]);
22 - export std::string usageLine();
23 - export std::string helpText();
24 - export std::string optionsText(const ProgramCommands& commands);
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline_UnitTest.ixx
3 - export module Cpp_TextFinder_Cmdline_UnitTest;
8 - export int runCmdlineUnitTests(std::ostream& log);
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/src/Cpp_TextFinder_Output.ixx
10 - export module Cpp_TextFinder_Output;
15 - export class Cpp_TextFinder_Output : public Output {
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/src/Cpp_TextFinder_Output_UnitTest.ixx
... 3 more
accessed 6 files, 4 directories
17 line(s), exit 0
The six detail lines under Cpp_TextFinder_Cmdline.ixx are that library's whole
public interface, which the
Cmdline page lists in its
Section 1. The anchor ^ is what keeps the count to six: export
appears in this project only at a declaration's start, and a module interface unit is the
one place C++ puts the keyword where a line-anchored pattern can find it.
accessed 6 files, 4 directories is the block that shows why the count is not a
count of what was reported. Four files produced blocks and two did not - the test drivers,
hidden by the default /h true - so the file count exceeds the paths above it by
exactly the files /h hid. The four directories are the two roots and the
src/ beneath each.
3.9 An Unopenable Root
A root path that does not exist is announced and the run still exits 0. The second root is a
regular file, which §3.2 has searched as a single file rather than traversed.
9. A root path that cannot be opened is announced and the run still exits 0, while
an error announcement ignores /h true.
$ Cpp_TextFinder -P no_such_directory -P Cpp_Spec_driven_TextFinder/Cpp_TextFinder_Structure.md -r import
cannot open no_such_directory
Cpp_Spec_driven_TextFinder/Cpp_TextFinder_Structure.md
accessed 1 files, 0 directories
3 line(s), exit 0
Three lines showing four rules. The announcement appears under the default
/h true, because §3.4 gates file announcements on /h and
error announcements on nothing. It reaches stdout rather than stderr, since
Cpp_TextFinder_Dirnav emits it through the same Output as every
block line, and the binary neither formats nor inspects it. And the exit code is 0: a root
that could not be searched is a result, not a usage failure, so
Cpp_TextFinder_Entry has nothing to report.
The fourth rule is the summary's, and this is the smallest block that states it:
accessed 1 files, 0 directories. The unopenable root counts as neither, no
attempt on it having reached the tests the count is about, while the root that resolved to a
regular file counts as one file and adds no directory. The uninflected 1 files
is §3.6's accepted cost, visible here rather than argued for.
The second root carries no -p filter, so the extension filter admits it. A
-p ixx on the same command line would have dropped it silently, since a root
path escapes the skip list and does not escape the extension filter.
3.10 A Malformed Expression
-r "export(" is an unbalanced group that std::regex will not
compile. §5.2 puts the option listing on stdout first, so the /r line
shows what failed, then the diagnostic on stderr.
10. A malformed expression. §5.2 puts the option listing on stdout first, so the /r
line shows what failed, then the diagnostic on stderr, and the exit code is 1.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "export("
/P .
/p md, ixx, cpp
/r export(
/s true
/h true
/v false
/H false
/n false
/L false
[stderr] invalid regex for switch: /r
[stderr] usage: Cpp_TextFinder [/P path] [/p "ext, ext"] [/r regex] [/s bool] [/h bool] [/v bool] [/H bool] [/n bool] [/L bool]
9 line(s), exit 1
Nine lines on stdout and exit 1. Three rules are visible at once: the listing appears
whatever /v says, since the /v line itself reads
false; the diagnostic is a reason line followed by the §5.1 usage line,
with <executable> resolved to Cpp_TextFinder; and the
listing reaches the stream ahead of the diagnostic, which the binary buys with an explicit
flush because std::cerr is unit-buffered and stdout is not.
The run traversed nothing. Compilation happens at
Cpp_TextFinder_Dirnav construction, before the first root path is visited, so
a bad pattern costs no file reads. It also writes no run summary: §3.6 gives the line
to runs that begin traversal, and this one exits at step 7 of the startup sequence.
3.11 The Help Text
/H true writes the text §5.1 fixes to stdout and exits 0, traversing
nothing. This block uses the / introducer where the others use
-, which §4 makes equivalent.
11. The help text of §5.1, written to stdout under /H, traversing nothing.
$ Cpp_TextFinder /H true
usage: Cpp_TextFinder [/P path] [/p "ext, ext"] [/r regex] [/s bool] [/h bool] [/v bool] [/H bool] [/n bool] [/L bool]
/P path (.) root path for traversal; repeat to add more root paths
/p "ext, ext" () comma-separated bare extensions to search; empty searches every file
/r regex (.) regular expression evaluated against each line
/s true|false (true) recurse into subdirectories
/h true|false (true) hide files that matched nothing; errors always appear
/v true|false (false) list the resolved option set before traversal
/H true|false (false) print this help and exit
/n true|false (false) add a detail line per match, carrying the line number
/L true|false (false) add a detail line per match, carrying the line text
A matching file prints its path on one line; /n and /L add indented detail
lines beneath it. A path is never printed twice. A search ends with a line
... 8 more
22 line(s), exit 0
22 lines, of which the first is the usage line invocation 10 sent to stderr.
helpText() is built from usageLine(), so the two agree by
construction rather than by proofreading, and the integration suite asserts that this
capture starts with what the library returns.
It was 21 until §3.6 arrived. The block-form paragraph gained a sentence -
"A search ends with a line counting the files and directories it reached." - because a help
text that described the block form without naming that line would leave one line of every
run unexplained. The excerpt cuts off mid-sentence at line 14, which is the 14-line rule
doing its job rather than a truncated capture. Like invocation 10, this one traverses
nothing and writes no run summary.
The help text reaches stdout after Cpp_TextFinder_Output has put the stream
into binary mode, which is step 2 of the startup sequence and ahead of step 3's help. Were
the order reversed, these 22 lines would carry CRLF on Windows while the rest of the
program's stdout carried LF, and the integration suite asserts the absence of CR here for
that reason.
demonstration complete
4. Comparability
The extension list is cumulative, per Page_Structure.md §0: ixx, cpp here,
ixx, cpp, rs for Rust, ixx, cpp, rs, cs for C#, and every one of
the five for Python. Each run therefore reports the project's documents, its own sources, and
the sources of every implementation written before it - which for this one, first in the
order, means its own alone. Comparability is stated against the part two runs share, per
§7.4.
That makes this page the narrowest of the four and the widest at once. It selects the fewest
files, being first; and every file it selects, the other three select too, so its whole path
list is a subset of each of theirs. A reader comparing this capture against the C# one is
comparing a list against a longer list that contains it, not two lists that diverge.
| Must agree across implementations |
Is each run's own |
| Block 3.6's paths, in the same order, that invocation being the only one of the seven where two runs select the same files |
The source paths, and the line counts that follow from them |
| The exit code, §3.4 fixing all three values |
The header's executable and search root |
| Block 3.10's two stderr lines in full, but for the executable name §5.1 parameterizes |
The echoed command line's executable and extension list |
Block 3.7's nine listing lines, but for the /p line |
Blocks 3.8 and 3.9, rooted in this implementation's own directories |
| Block 3.11's 22 help lines, but for that same executable name |
The two counts in every run summary, which include this implementation's own sources |
| The form of every run summary: one line, two decimal counts, neither noun inflected |
— |
Block 3.6's accessed 13 files, 1 directories, which all three implementations report alike |
— |
The last row is the newest and the sharpest. Two numbers agreeing across three
implementations is a narrower claim than eight paths agreeing, and a stronger one: the paths
could agree while a count disagreed, and that would be a defect in whichever implementation
counted differently. Run over the shared documents with the same command line, all three
report accessed 47 files, 36 directories.
Block 3.6 carries both of those rows, and §7.4 now states why it carries them alone.
The paths-agree claim holds only where two runs select the same files, and the cumulative
extension list means that is true for one invocation of the seven: 3.6 reads the project
root with -s false, where no implementation's sources sit. Everywhere else the
lists agree as sets over the documents and not as sequences, because a path list is one
depth-first walk and the sources one run selects interleave with the documents both do.
A mismatch in the shared part is a defect in one of the two implementations or an ambiguity
in Spec_TextFinder.md, and the page reporting it says which. A disagreement in
the exit code in particular is a defect rather than a difference of convention, since the
three values are fixed rather than left to the implementation.
Comparing two implementations means comparing captures taken over the same tree state on
the same platform. Spec_TextFinder.md §6 permits a line-for-line comparison only under
that condition, because §3.2 leaves a directory's entries in filesystem order.
5. The Capture Is Dated
Seven of the 11 invocations count files in this project, so their output moves when a
document is added to the tree or removed from it, and the run summary of §3.6 moves
with it in each of the eight that traverse. This page therefore states the date of its
capture, 2026-09-16, and a page whose counts disagree with a fresh run is stale rather than
wrong.
The summary sharpens that. Before §3.6, a reader comparing this page against a fresh
run had to count a block's lines to notice the tree had moved; now every traversing block
ends in two numbers that say so outright.
The tree moves for reasons the program has nothing to do with. Adding
README.md and the page structure moved four counts in one day. Moving the
superseded page structure into archive/ dropped two more, since
archive is the first of the 11 default skip-list names. Adding a dated
demonstration record added one, and this capture's block 3.3 reports that record among its
matches.
Writing the Rust and then the C# specifications moved those counts again, which is why this
capture replaced Demo_9-14-2026.md: invocation 2 went from 51 lines to 62,
invocations 3 and 4 from 40 to 74, invocation 5 from 39 to 48, and invocation 7 from 60 to
71. One line of each increase is the run summary §3.6 added; the rest is the tree.
Invocation 6 did not move, searching the project root alone, where no implementation's
sources sit. §7.5 has the replaced capture deleted rather than kept beside this one,
since two dated captures of one implementation invite a reader to compare counts that were
never taken over the same tree.
A page rebuilt after the tree changes is recaptured in full rather than edited in place,
since the counts appear both in the blocks and in the prose around them. Recapturing is one
command:
run_demo.bat
6. Source
Cpp_TextFinder_Demo.ixx in full, then its driver. The 11
show calls at the bottom are the 11 blocks above, and their purpose strings
are the prose the capture carries. show is also where the run summary is
rescued from the withheld tail, per §7.2 part 4: after writing the
... N more line it tests the run's last line for the accessed
prefix and writes it too. invoke redirects stdout and stderr to files
and reads them back in binary, which is what lets the demonstration report both streams
without interleaving them.
Cpp_TextFinder_Demo.ixx
// Cpp_TextFinder_Demo.ixx - runs Cpp_TextFinder against this project and shows what it produces
export module Cpp_TextFinder_Demo;
import std;
export int runDemo(std::ostream& log, const std::filesystem::path& executable,
const std::filesystem::path& projectRoot);
namespace {
// Extensions this demonstration searches, per the /p rules of Spec_TextFinder.md §5.
const std::string extensions = R"("md, ixx, cpp")";
constexpr std::size_t shownLines = 14;
struct Run {
int exitCode{0};
std::string out;
std::string err;
};
std::string readBytes(const std::filesystem::path& path) {
std::ifstream file{path, std::ios::binary};
return std::string{std::istreambuf_iterator<char>{file}, std::istreambuf_iterator<char>{}};
}
Run invoke(const std::filesystem::path& executable, const std::string& arguments,
const std::filesystem::path& workingDirectory) {
const std::filesystem::path outPath = workingDirectory / "demo.stdout";
const std::filesystem::path errPath = workingDirectory / "demo.stderr";
const std::filesystem::path previous = std::filesystem::current_path();
std::filesystem::current_path(workingDirectory);
std::string command = "\"" + executable.string() + "\" " + arguments +
" > \"" + outPath.string() + "\" 2> \"" + errPath.string() + "\"";
#ifdef _WIN32
command = "\"" + command + "\""; // cmd /c strips the outermost pair
#endif
const int status = std::system(command.c_str());
std::filesystem::current_path(previous);
Run result;
#ifdef _WIN32
result.exitCode = status;
#else
result.exitCode = (status & 0xFF00) >> 8;
#endif
result.out = readBytes(outPath);
result.err = readBytes(errPath);
std::filesystem::remove(outPath);
std::filesystem::remove(errPath);
return result;
}
std::string today() {
const std::chrono::zoned_time local{std::chrono::current_zone(), std::chrono::system_clock::now()};
const std::chrono::year_month_day date{std::chrono::floor<std::chrono::days>(local.get_local_time())};
return std::format("{:%Y-%m-%d}", date);
}
std::vector<std::string> lines(const std::string& text) {
std::vector<std::string> collected;
std::istringstream stream{text};
for (std::string line; std::getline(stream, line);) {
if (!line.empty() && line.back() == '\r') line.pop_back();
collected.push_back(line);
}
return collected;
}
void show(std::ostream& log, const std::filesystem::path& executable,
const std::filesystem::path& projectRoot, std::string_view purpose,
const std::string& arguments) {
log << "\n" << purpose << "\n";
log << " $ Cpp_TextFinder" << (arguments.empty() ? "" : " ") << arguments << "\n\n";
const Run run = invoke(executable, arguments, projectRoot);
const std::vector<std::string> out = lines(run.out);
for (std::size_t i = 0; i < out.size() && i < shownLines; ++i) log << " " << out[i] << "\n";
if (out.size() > shownLines) {
log << " ... " << (out.size() - shownLines) << " more\n";
// Page_Structure.md §7.2 part 4: the run summary is the last line a traversing run
// writes, so the excerpt above never reaches it. Show it rather than withhold it.
if (out.back().starts_with("accessed ")) log << " " << out.back() << "\n";
}
if (out.empty()) log << " (no output)\n";
for (const std::string& line : lines(run.err)) log << " [stderr] " << line << "\n";
log << "\n " << out.size() << " line(s), exit " << run.exitCode << "\n";
}
} // namespace
int runDemo(std::ostream& log, const std::filesystem::path& executable,
const std::filesystem::path& projectRoot) {
log << "Cpp_TextFinder demonstration\n";
log << " date: " << today() << "\n";
log << " executable: " << executable.string() << "\n";
log << " root: " << projectRoot.string() << "\n";
log << " extensions: " << extensions << "\n";
if (!std::filesystem::exists(executable)) {
log << "\n executable not found\n";
return 1;
}
if (!std::filesystem::is_directory(projectRoot)) {
log << "\n project root not found\n";
return 1;
}
const std::string root = "-P . -p " + extensions;
show(log, executable, projectRoot,
"1. No switch at all. The command line names no work, so Cpp_TextFinder lists the\n"
" options a real invocation would start from and exits 0 (Spec_TextFinder.md §3.1).",
"");
show(log, executable, projectRoot,
"2. Default expression. The default /r of . with no /n or /L needs no file content,\n"
" so each selected file is reported by its path line alone (Spec_TextFinder.md §3.3).",
root);
show(log, executable, projectRoot,
"3. The two-level block of §3.4: a path written once, then an indented detail line\n"
" per match carrying the line number and the line's text.",
root + R"( -r "too large" -n true -L true)");
show(log, executable, projectRoot,
"4. The same search with /L false, leaving the line number alone on each detail line.",
root + R"( -r "too large" -n true)");
show(log, executable, projectRoot,
"5. Which documents cite the parent specification. Neither /n nor /L, so every block\n"
" is its path line and no path is written twice.",
root + R"( -r "Spec_TextFinder\.md")");
show(log, executable, projectRoot,
"6. The same search one level deep, /s false entering no subdirectory.",
root + R"( -r "Spec_TextFinder\.md" -s false)");
show(log, executable, projectRoot,
"7. /h false adds a line for each file that matched nothing - the files case 5 left\n"
" silent - alongside the resolved option set from /v true.",
root + R"( -r "Spec_TextFinder\.md" -h false -v true)");
show(log, executable, projectRoot,
"8. Two roots, traversed in the order /P gave them. Each path begins with the root\n"
" whose subtree holds it, and the skip list prunes build/ beneath both.",
R"(-P Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline )"
R"(-P Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output )"
R"(-p "ixx, cpp" -r "^export " -n true -L true)");
show(log, executable, projectRoot,
"9. A root path that cannot be opened is announced and the run still exits 0, while\n"
" an error announcement ignores /h true.",
R"(-P no_such_directory )"
R"(-P Cpp_Spec_driven_TextFinder/Cpp_TextFinder_Structure.md -r import)");
show(log, executable, projectRoot,
"10. A malformed expression. §5.2 puts the option listing on stdout first, so the /r\n"
" line shows what failed, then the diagnostic on stderr, and the exit code is 1.",
root + R"( -r "export(")");
show(log, executable, projectRoot,
"11. The help text of §5.1, written to stdout under /H, traversing nothing.",
"/H true");
log << "\ndemonstration complete\n";
return 0;
}
Cpp_TextFinder_Demo_Driver.cpp
// Cpp_TextFinder_Demo_Driver.cpp - runs the Cpp_TextFinder demonstration
//
// CMake supplies TEXTFINDER_EXE and DEMO_ROOT; arguments override them, so the demonstration
// can be pointed at another build or another tree.
import std;
import Cpp_TextFinder_Demo;
int main(int argc, char* argv[]) {
const std::filesystem::path executable = (argc > 1) ? std::filesystem::path{argv[1]}
: std::filesystem::path{TEXTFINDER_EXE};
const std::filesystem::path root = (argc > 2) ? std::filesystem::path{argv[2]}
: std::filesystem::path{DEMO_ROOT};
return runDemo(std::cout, executable, root);
}
run_demo.bat
@echo off
rem run_demo.bat - runs the Cpp_TextFinder demonstration and reports its status
rem
rem Two optional arguments override the executable and the demo root, both of which
rem CMake compiled into the driver.
rem
rem Spec_TextFinder.md §6.2: the runner builds what it is about to run, announces the
rem status the demonstration returned, and holds the console after its summary.
setlocal enabledelayedexpansion
cd /d "%~dp0"
set "BUILD=%~dp0build"
set "DEMO=%BUILD%\Cpp_TextFinder_Demo_Driver.exe"
echo Build directory: %BUILD%
call :build
if not "!BUILD_FAILED!"=="0" (
echo.
echo build failed; the demonstration counts as failed
echo --- Demo: NOT RUN ---
call :hold
exit /b 1
)
if not exist "%DEMO%" (
echo.
echo not built: %DEMO%
echo --- Demo: NOT RUN ---
call :hold
exit /b 1
)
echo.
"%DEMO%" %1 %2
set "STATUS=!ERRORLEVEL!"
echo.
if "!STATUS!"=="0" (
echo --- Demo: exit status !STATUS! ^(OK^) ---
) else (
echo --- Demo: exit status !STATUS! ^(FAILED^) ---
)
call :hold
exit /b !STATUS!
rem --- §6.2: configure when there is no cache, then build. ---
:build
set "BUILD_FAILED=0"
call :compiler
if not exist "%BUILD%\CMakeCache.txt" (
echo.
echo === configuring ===
cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release
if errorlevel 1 (
set "BUILD_FAILED=1"
exit /b 0
)
)
echo.
echo === building ===
cmake --build build
if errorlevel 1 set "BUILD_FAILED=1"
exit /b 0
rem --- The Output module's global fragment includes <io.h>, so the build needs the MSVC
rem environment. A Developer Command Prompt already carries it; otherwise vswhere
rem locates one and vcvars64.bat establishes it for this script alone. ---
:compiler
where cl >nul 2>&1 && exit /b 0
set "VSWHERE=%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe"
if not exist "!VSWHERE!" (
echo no cl and no vswhere; run from a Developer Command Prompt
exit /b 0
)
set "VSPATH="
for /f "usebackq tokens=*" %%i in (`"!VSWHERE!" -latest -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath`) do set "VSPATH=%%i"
if not defined VSPATH (
echo vswhere found no C++ toolset; run from a Developer Command Prompt
exit /b 0
)
if not exist "!VSPATH!\VC\Auxiliary\Build\vcvars64.bat" (
echo no vcvars64.bat under !VSPATH!; run from a Developer Command Prompt
exit /b 0
)
echo MSVC environment from !VSPATH!
call "!VSPATH!\VC\Auxiliary\Build\vcvars64.bat" >nul
exit /b 0
rem --- §6.2: hold the console unless a capture suppressed it. ---
:hold
if not "%TEXTFINDER_NO_PAUSE%"=="" exit /b 0
echo.
pause
exit /b 0
7. Prompt Records
The record of the switch-default, first-match, and demonstration changes. Its turns sit
inside the C++ directory and no earlier row of Page_Structure.md §8 claims them, which
is what assigns it to this page. It carries a demonstration capture of its own, taken
before the two-level block form of §3.4 replaced the single-line record, so the
output shown inside it differs from the output shown above - which is the staleness
Section 5 describes, preserved deliberately as process evidence.
Prompts_Final_Tweaks_TextFinder.md
# Prompts and Replies — Final Tweaks
Recorded 2026-09-10. Earlier work is in [Prompts_Build_Cpp_TextFinder.md](Prompts_Build_Cpp_TextFinder.md) and [Prompts_Cpp_Spec_driven_TextFinder_Tests.md](Prompts_Cpp_Spec_driven_TextFinder_Tests.md). The turns below changed [Spec_TextFinder.md](../Spec_TextFinder.md) as well as the C++ specifications, sources, and tests, and added a demonstration.
---
## Turn 1
### User
> change the specified default values of /n and /L to false. If /r has default value "." which matches everything, do not read file before signalling match.
### Assistant
Took both as specification changes first, then code, then tests.
**Defaults.** `/n` and `/L` now default to `false` in the parent §5 table, the §5.1 help text, and §3.4's description of the fields, in the Cmdline specification's `ProgramCommands`, and in the code. A bare command line now emits paths alone.
**Reporting without reading.** Parent §3.3 gained the case: when the expression is the default `.` and `/n` and `/L` are both `false`, a record carries only the path and one match settles it, so every selected file of non-zero size is reported without being opened. `Cpp_TextFinder_Dirnav` computes the condition once at construction. The size test still applies, reading only filesystem metadata, so `too large` survives and a huge file is still never opened; empty files are excluded, having no line to match.
Flagged three consequences, written into §3.3 rather than left implicit: a binary file is reported, since without content the NUL and UTF-8 tests cannot run and §7's "does not search binary files" softens to "does not search, but does list"; a file whose lines are all empty is reported, which `.` would not in fact have matched; and no `skipped` announcement arises in this mode. Offered two ways to narrow the shortcut and awaited a decision.
Tests updated for the new defaults and three added. All passed: 48, 22, 8, 41 — 119 in total.
---
## Turn 2
### User
> leave as-is
### Assistant
Left the behavior as built, noting that the three consequences are documented in §3.3, so they are specified rather than incidental.
---
## Turn 3
### User
> create a new demonstration (works just like integration test but more specific). The demo files are placed in same folder as integration tests. The demo root is the project directory, /p has values "md,ixx,cpp". Then, run demo, showing output.
### Assistant
Created [Cpp_TextFinder_Demo.ixx](src/Cpp_TextFinder_Demo.ixx) and [Cpp_TextFinder_Demo_Driver.cpp](src/Cpp_TextFinder_Demo_Driver.cpp) beside the integration test, built the same way: a module exporting one entry point, a driver, and CMake definitions supplying the executable path through `$<TARGET_FILE:Cpp_TextFinder>` and the demonstration root through `get_filename_component` on the parent directory, so the root is `Spec_driven_TextFinder` itself. Every case runs with `-p "md, ixx, cpp"`.
Six cases: the bare expression listing files without reading them; `^export module` with `/n` and `/L` showing that the `.md` specifications and the `.ixx` sources agree on every module name; `Spec_TextFinder\.md` as paths only; the same search under `/s false`; `/h false` with `/v true` showing the option listing ahead of announcements and records; and a malformed expression refused before traversal. Output is capped at fourteen lines a case with the true count printed beneath.
Running it exposed something the tests had not: cases three and four repeated the same path many times — 90 and 17 lines. That is §3.4 working as written, a record per matching *line*, but with `/n` and `/L` newly defaulting to `false` the common invocation now produces duplicate paths. Flagged it as a §3.4 change needing authorization rather than making it.
---
## Turn 4
### User
> make the fix to show only one match for each matched file, e.g., exit after first match with both n and L using default values.
### Assistant
Rewrote parent §3.4: with either field present a record is emitted for every matching line; with both at their defaults a record carries the path alone, which tells no two matches in one file apart, so a single record is emitted per matching file and evaluation of that file stops at its first match. The Dirnav specification records the same in §8.
In code, `Cpp_TextFinder_Dirnav` computes `pathOnly_` at construction and the line loop returns after emitting when it holds; `contentNotNeeded_` is now derived from it.
Three tests added — a Dirnav pair proving a four-line file with three matches yields one record but three when `/n` is on, and an integration check that a two-match file emits its path once. All passed: 48, 24, 8, 42 — 122 in total.
Re-ran the demonstration: case three fell from 90 lines to 26 and case four from 17 to 4, each file named once. Case five still shows several records for one file, correctly, because `-n true` is set there.
---
## Turn 5
### User
> show the output generated
### Assistant
Reproduced the whole demonstration inline, since command output reaches the assistant but not reliably the user's terminal, and noted that the `... N more` lines are the demonstration's own display cap rather than anything TextFinder did.
```
Cpp_TextFinder demonstration
executable: .../Cpp_Spec_driven_TextFinder_Entry/Cpp_TextFinder.exe
root: .../Code/Projects/Spec_driven_TextFinder
extensions: "md, ixx, cpp"
1. Bare expression. The default /r of . with no /n or /L needs no file content,
so every selected file is listed from its path alone (Spec_TextFinder.md §3.3).
$ Cpp_TextFinder -P . -p "md, ixx, cpp"
Constitution.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Fix_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline_TestDriver.cpp
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline_UnitTest.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Fix_Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav_TestDriver.cpp
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav_UnitTest.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Prompts_Fix_Spec_Cpp_TextFinder_Output.md
... 25 more
39 line(s), exit 0
2. Where each C++ module is declared, with line numbers and matched text.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "^export module" -n true -L true
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Spec_Cpp_TextFinder_Cmdline.md - 27 - export module Cpp_TextFinder_Cmdline;
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline.ixx - 3 - export module Cpp_TextFinder_Cmdline;
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline_UnitTest.ixx - 3 - export module Cpp_TextFinder_Cmdline_UnitTest;
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Spec_Cpp_TextFinder_Dirnav.md - 27 - export module Cpp_TextFinder_Dirnav;
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav.ixx - 3 - export module Cpp_TextFinder_Dirnav;
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav_UnitTest.ixx - 3 - export module Cpp_TextFinder_Dirnav_UnitTest;
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Spec_Cpp_TextFinder_Output.md - 26 - export module Cpp_TextFinder_Output;
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/src/Cpp_TextFinder_Output.ixx - 10 - export module Cpp_TextFinder_Output;
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/src/Cpp_TextFinder_Output_UnitTest.ixx - 3 - export module Cpp_TextFinder_Output_UnitTest;
Cpp_Spec_driven_TextFinder/src/Cpp_TextFinder_Demo.ixx - 3 - export module Cpp_TextFinder_Demo;
Cpp_Spec_driven_TextFinder/src/Cpp_TextFinder_IntegrationTest.ixx - 3 - export module Cpp_TextFinder_IntegrationTest;
11 line(s), exit 0
3. Which documents cite the parent specification, paths only.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "Spec_TextFinder\.md"
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Fix_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/src/Cpp_TextFinder_Cmdline_UnitTest.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Fix_Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Prompts_Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/Spec_Cpp_TextFinder_Dirnav.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Dirnav/src/Cpp_TextFinder_Dirnav_UnitTest.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Prompts_Fix_Spec_Cpp_TextFinder_Output.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Prompts_Spec_Cpp_TextFinder_Output.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/Spec_Cpp_TextFinder_Output.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Output/src/Cpp_TextFinder_Output.ixx
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_TextFinder_Entry/Prompts_Spec_Cpp_TextFinder_Entry.md
... 12 more
26 line(s), exit 0
4. The same search one level deep, /s false entering no subdirectory.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "Spec_TextFinder\.md" -s false
Project_Tree.md
Prompts_Fix_Constitution.md
Prompts_Fix_Spec_TextFinder.md
Prompts_Spec_TextFinder.md
4 line(s), exit 0
5. Announcements turned on with /h false, alongside the resolved option set from /v true.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "usageLine" -h false -v true -n true
/P .
/p md, ixx, cpp
/r usageLine
/s true
/h false
/v true
/H false
/n true
/L false
searched Constitution.md
searched Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Fix_Spec_Cpp_TextFinder_Cmdline.md
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Fix_Spec_Cpp_TextFinder_Cmdline.md - 69
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Fix_Spec_Cpp_TextFinder_Cmdline.md - 77
Cpp_Spec_driven_TextFinder/Cpp_Spec_driven_Cmdline/Prompts_Fix_Spec_Cpp_TextFinder_Cmdline.md - 104
... 59 more
73 line(s), exit 0
6. A malformed expression, refused before traversal with the diagnostic of §5.2.
$ Cpp_TextFinder -P . -p "md, ixx, cpp" -r "export("
(no output)
[stderr] invalid regex for switch: /r
[stderr] usage: Cpp_TextFinder [/P path] [/p "ext, ext"] [/r regex] [/s bool] [/h bool] [/v bool] [/H bool] [/n bool] [/L bool]
0 line(s), exit 1
demonstration complete
```
This is the run as it stood at this turn. A later run differs in two ways that reflect the project, not the program: the header carries the date line added in Turn 6, and case three finds one more file, this record among them.
---
## Turn 6
### User
> In the demonstration, write the date as a new second line
### Assistant
Added the date as the second line of the header, labelled and aligned with the three lines beneath it so the header stays uniform:
```
Cpp_TextFinder demonstration
date: 2026-09-10
executable: ...
root: ...
extensions: "md, ixx, cpp"
```
Took it from `std::chrono::current_zone()` rather than UTC, which would read as the previous day late in the evening.
---
## Turn 7
### User
> Create a batch file that executes the demo and place with the other batch files
### Assistant
Created [run_demo.bat](run_demo.bat) beside the two test scripts and added it to [Project_Tree.md](../Project_Tree.md). It follows their shape — `%~dp0` to locate the build directory, a `not built:` report if the driver is missing, the exit status announced, and the process exit code passed through — and carries the `pause` the user had added to the other two, a demonstration being the likeliest of the three to be launched by double-click. Two optional arguments pass through to override the executable and the root.
---
## Turn 8
### User
> create Prompts_Final_Tweaks_TextFinder.md containing all the prompts and replies from today
### Assistant
Created this file, [Prompts_Final_Tweaks_TextFinder.md](Prompts_Final_Tweaks_TextFinder.md), and added it to [Project_Tree.md](../Project_Tree.md). User prompts are quoted verbatim. Assistant replies are summarized from the actual responses; tool calls are noted as effects rather than transcribed.