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43 lines
2.5 KiB
Fish
43 lines
2.5 KiB
Fish
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#!/usr/bin/env fish
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#
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# This script was originally motivated to work around a quirk (or bug depending on your viewpoint)
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# of the xgettext command. See https://lists.gnu.org/archive/html/bug-gettext/2014-11/msg00006.html.
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# However, it turns out that even if that quirk did not exist we would still need something like
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# this script to properly extract descriptions. That's because we need to normalize the strings to
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# a format that xgettext will handle correctly. Also, `xgettext -LShell` doesn't correctly extract
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# all the strings we want translated. So we extract and normalize all such strings into a format
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# that `xgettext` can handle.
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# This regex handles descriptions for `complete` and `function` statements. These messages are not
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# particularly important to translate. Hence the "implicit" label.
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set implicit_regex '(?:^| +)(?:complete|function) .*? (?:-d|--description) (([\'"]).+?(?<!\\\\)\\2).*'
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# This regex handles explicit requests to translate a message. These are more important to translate
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# than messages which should be implicitly translated.
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set explicit_regex '.*\( *_ (([\'"]).+?(?<!\\\\)\\2) *\).*'
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mkdir -p /tmp/fish/implicit/share/completions /tmp/fish/implicit/share/functions
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mkdir -p /tmp/fish/explicit/share/completions /tmp/fish/explicit/share/functions
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for f in share/config.fish share/completions/*.fish share/functions/*.fish
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# Extract explicit attempts to translate a message. That is, those that are of the form
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# `(_ "message")`.
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string replace --filter --regex $explicit_regex 'echo $1' <$f | fish >/tmp/fish/explicit/$f.tmp ^/dev/null
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while read description
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echo 'N_ "'(string replace --all '"' '\\"' -- $description)'"'
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end </tmp/fish/explicit/$f.tmp >/tmp/fish/explicit/$f
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rm /tmp/fish/explicit/$f.tmp
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# Handle `complete` / `function` description messages. The `| fish` is subtle. It basically
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# avoids the need to use `source` with a command substituion that could affect the current
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# shell.
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string replace --filter --regex $implicit_regex 'echo $1' <$f | fish >/tmp/fish/implicit/$f.tmp ^/dev/null
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while read description
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# We don't use `string escape` as shown in the next comment because it produces output that
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# is not parsed correctly by xgettext. Instead just escape double-quotes and quote the
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# resulting string.
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echo 'N_ "'(string replace --all '"' '\\"' -- $description)'"'
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end </tmp/fish/implicit/$f.tmp >/tmp/fish/implicit/$f
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rm /tmp/fish/implicit/$f.tmp
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end
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