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8.3.14.1 Creating Compendia
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Basically every PO file consisting of translated entries only can be
declared as a valid compendium. Often the translator wants to have
special compendia; let's consider two cases: `concatenating PO files'
and `extracting a message subset from a PO file'.
8.3.14.2 Concatenate PO Files
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To concatenate several valid PO files into one compendium file you can
use `msgcomm' or `msgcat' (the latter preferred):
msgcat -o compendium.po file1.po file2.po
By default, `msgcat' will accumulate divergent translations for the
same string. Those occurrences will be marked as `fuzzy' and highly
visible decorated; calling `msgcat' on `file1.po':
#: src/hello.c:200
#, c-format
msgid "Report bugs to <%s>.\n"
msgstr "Comunicar `bugs' a <%s>.\n"
and `file2.po':
#: src/bye.c:100
#, c-format
msgid "Report bugs to <%s>.\n"
msgstr "Comunicar \"bugs\" a <%s>.\n"
will result in:
#: src/hello.c:200 src/bye.c:100
#, fuzzy, c-format
msgid "Report bugs to <%s>.\n"
msgstr ""
"#-#-#-#-# file1.po #-#-#-#-#\n"
"Comunicar `bugs' a <%s>.\n"
"#-#-#-#-# file2.po #-#-#-#-#\n"
"Comunicar \"bugs\" a <%s>.\n"
The translator will have to resolve this "conflict" manually; she has
to decide whether the first or the second version is appropriate (or
provide a new translation), to delete the "marker lines", and finally
to remove the `fuzzy' mark.
If the translator knows in advance the first found translation of a
message is always the best translation she can make use to the
`--use-first' switch:
msgcat --use-first -o compendium.po file1.po file2.po
A good compendium file must not contain `fuzzy' or untranslated
entries. If input files are "dirty" you must preprocess the input
files or postprocess the result using `msgattrib --translated
--no-fuzzy'.
8.3.14.3 Extract a Message Subset from a PO File
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Nobody wants to translate the same messages again and again; thus you
may wish to have a compendium file containing `getopt.c' messages.
To extract a message subset (e.g., all `getopt.c' messages) from an
existing PO file into one compendium file you can use `msggrep':
msggrep --location src/getopt.c -o compendium.po file.po
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