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Format: support argument truncation

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Fix #1043
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李通洲
2024-06-26 16:14:34 +08:00
parent a4614ec412
commit 18d36c5054
3 changed files with 52 additions and 34 deletions
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src/data/help_format.txt
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@@ -8,6 +8,10 @@ In 2.14.0 or newer, the value indices can be meaningful named tags.
For example: "--title-format '{user-name-colored}{at-symbol-colored}{host-name-colored}'" is equivalent to "--title-format '{6}{7}{8}'"
See "fastfetch -h title-format" for all supported tags.
In 2.17.0 or newer, a truncation length can be specified using syntax '<arg>:<trunc-length>`
For example: "--title-format '{user-name:5}'" will truncate user name into 5-length string.
If '<trunc-length>' is negative, an ellipsis … will be appended at the end when the original string is truncated.
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.