X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Flinebuffer.c;h=77f2a047a409e616046608a62e81ec2e9b94595b;hb=024eeefda59f214eeaac745db9f3e982b9a726c3;hp=96d26bd9acc28a0d74dca9b402e4ff36c0f31687;hpb=267a39bafd249d7eb9c37df06dc6defcf41cb343;p=gnulib.git diff --git a/lib/linebuffer.c b/lib/linebuffer.c index 96d26bd9a..77f2a047a 100644 --- a/lib/linebuffer.c +++ b/lib/linebuffer.c @@ -1,7 +1,7 @@ /* linebuffer.c -- read arbitrarily long lines - Copyright (C) 1986, 1991, 1998, 1999, 2001, 2003, 2004 Free - Software Foundation, Inc. + Copyright (C) 1986, 1991, 1998, 1999, 2001, 2003, 2004, 2006, 2007 + Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -18,10 +18,8 @@ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* Written by Richard Stallman. */ - -#ifdef HAVE_CONFIG_H -# include -#endif + +#include #include #include @@ -42,17 +40,25 @@ initbuffer (struct linebuffer *linebuffer) memset (linebuffer, 0, sizeof *linebuffer); } +struct linebuffer * +readlinebuffer (struct linebuffer *linebuffer, FILE *stream) +{ + return readlinebuffer_delim (linebuffer, stream, '\n'); +} + /* Read an arbitrarily long line of text from STREAM into LINEBUFFER. - Keep the newline; append a newline if it's the last line of a file - that ends in a non-newline character. Do not null terminate. + Consider lines to be terminated by DELIMITER. + Keep the delimiter; append DELIMITER if it's the last line of a file + that ends in a character other than DELIMITER. Do not NUL-terminate. Therefore the stream can contain NUL bytes, and the length - (including the newline) is returned in linebuffer->length. + (including the delimiter) is returned in linebuffer->length. Return NULL when stream is empty. Return NULL and set errno upon error; callers can distinguish this case from the empty case by invoking ferror (stream). Otherwise, return LINEBUFFER. */ struct linebuffer * -readlinebuffer (struct linebuffer *linebuffer, FILE *stream) +readlinebuffer_delim (struct linebuffer *linebuffer, FILE *stream, + char delimiter) { int c; char *buffer = linebuffer->buffer; @@ -69,9 +75,9 @@ readlinebuffer (struct linebuffer *linebuffer, FILE *stream) { if (p == buffer || ferror (stream)) return NULL; - if (p[-1] == '\n') + if (p[-1] == delimiter) break; - c = '\n'; + c = delimiter; } if (p == end) { @@ -83,7 +89,7 @@ readlinebuffer (struct linebuffer *linebuffer, FILE *stream) } *p++ = c; } - while (c != '\n'); + while (c != delimiter); linebuffer->length = p - buffer; return linebuffer;