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Format: support syntax of {$ENV_VAR} in custom format

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Fix #1541
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Carter Li
2025-02-08 22:11:41 +08:00
committed by 李通洲
parent 486ade0e71
commit 016b1e6961
5 changed files with 61 additions and 26 deletions
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src/data/help_format.txt
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@@ -21,6 +21,8 @@ In 2.24.0 or newer, `{~startIndex,endIndex}` can be specified to slice a string.
If an index is omitted, 0 is used. For example, both `{~,0}` `{~0,}` and `{~,}` are same as `{~0,0}` and will always generate a empty string.
If `,endIndex` is omitted or greater than the length of the string, the length of string is used.
In 2.36.0 or newer, `{$NUM}` can be specified to reference a constant defined in `display.constants`. `{$ENV_VAR}` can be specified to reference an environment variable.
If the value index is missing, meaning the placeholder is "{}", an internal counter sets the value index.
This means that the format string "Values: {1} ({2})" is equivalent to "Values: {} ({})".
Note that this counter only counts empty placeholders, so the format string "{2} {} {}" will contain the second value, then the first, and then the second again.