Support POSIX.1-2024 read built-in behavior (except byte-wise field splitting) #123
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POSIX.1-2024 defines the exit status of the read built-in more specifically. This commit implements the new exit statuses as follows: - The exit status is 0 if the read built-in successfully reads a line. - If the end of the input is reached, the exit status is 1. - If the variables are read-only, the exit status is 2. - If the standard input is unreadable, the exit status is 3. - In case of a command line syntax error, the exit status is 4.
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This pull request includes several updates to the
readbuilt-in functionality, documentation, and translation files, as well as some minor updates to the source code files.Updates to
readbuilt-in functionality and documentation:NEWS,NEWS.ja: Thereadbuilt-in now returns more specific exit statuses and supports the-doption for specifying a delimiter character. [1] [2]doc/_read.txt,doc/ja/_read.txt: Updated syntax and description to include the new-doption and detailed the new exit statuses for thereadbuilt-in. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]Code changes for
readbuilt-in:input.c,input.h: Added support for reading input until a specified delimiter character is found, including new functionread_input_delimited. [1] [2] [3] [4] [5] [6] [7] [8]Translation updates:
po/ja.po: Updated Japanese translations to reflect changes in thereadbuilt-in functionality and documentation. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]Minor updates:
input.c,input.h: Updated copyright year to 2025. [1] [2]These changes enhance the
readbuilt-in by adding new functionality and improving documentation and translations, ensuring better support and usability.