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doc: include: update docs

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Simon Michael 2025-07-15 20:48:41 -07:00
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hledger/hledger.m4.md
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@ -2513,30 +2513,40 @@ include SOMEFILE
```
This has the same effect as if SOMEFILE's content was inlined at this point.
(Any `include`s within SOMEFILE will also be inlined, recursively.)
(With any include directives in SOMEFILE processed similarly, recursively.)
Only journal files can include other files.
They can include journal, timeclock or timedot files, but not CSV files.
Only journal files can include other files. They can include journal, timeclock or timedot files, but not CSV files.
If the file path begins with a tilde, that means home directory: `include ~/main.journal`.
If the file path begins with a tilde, that means your home directory: `include ~/main.journal`.
If it begins with a slash, it is an absolute path: `include /home/user/main.journal`.
Otherwise it is relative to the including file's folder: `include ../finances/main.journal`.
Otherwise it is relative to the current file's folder: `include finances/main.journal`.
Also, the path may have a file type prefix to force a specific file format, overriding the file extension(s)
(as described in [Data formats](#data-formats)): `include timedot:notes/2023.md`.
Also, the path may have a file type prefix to force a specific file format
(as described in [Data formats](#data-formats)): `include timedot:~/notes/2023*.md`.
The path may contain [glob patterns](https://en.wikipedia.org/wiki/Glob_(programming))
to match multiple files.
hledger's globs are similar to zsh's:
`?` to match any character;
`[a-z]` to match any character in a range;
`*` to match zero or more characters that aren't a path separator (like `/`);
`**` to match zero or more subdirectories and/or zero or more characters at the start of a file name;
etc.
Also, hledger's globs always exclude the including file itself.
So, you can do
The path may contain [glob patterns] to match multiple files, eg: `include *.journal`.
Note, the current file is always excluded from the matched paths.
(Though include cycles are still possible, and will be reported as an error.)
- `include *.journal` to include all other journal files in the current directory (excluding [dot files](https://en.wikipedia.org/wiki/Hidden_file_and_hidden_directory))
- `include **.journal` to include all other journal files in this directory and below (excluding dot directories/files)
- `include timelogs/2???.timedot` to include all timedot files named like a year number.
The special glob pattern `**` matches any number of path components.
It's useful for searching subdirectories.
Eg to include all .journal files below the current directory: `include **/*.journal`.
If you are using many, or deeply nested, include files, and have an error that's hard to pinpoint:
a good troubleshooting command is `hledger files --debug=6` (or 7).
[glob patterns]: https://hackage.haskell.org/package/Glob-0.9.2/docs/System-FilePath-Glob.html#v:compile
<!-- https://hackage.haskell.org/package/Glob-0.9.2/docs/System-FilePath-Glob.html#v:compile -->
## `P` directive