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* src/app-utils/file-utils.[ch]: add gnc_getline() function

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to read an unlimited line-length from a file (so you're
	  not limited to a buffer size with fgets() and the like).
	  It is similar to the getline(3) on Linux except the API
	  is different and it will always set the return string.


git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@9764 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Derek Atkins 2004-01-13 04:51:57 +00:00
parent 1442adfd85
commit 41bbf1ba6b
3 changed files with 66 additions and 1 deletions
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6
ChangeLog
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@ -1,5 +1,11 @@
2004-01-12 Derek Atkins <derek@ihtfp.com>
* src/app-utils/file-utils.[ch]: add gnc_getline() function
to read an unlimited line-length from a file (so you're
not limited to a buffer size with fgets() and the like).
It is similar to the getline(3) on Linux except the API
is different and it will always set the return string.
* src/doc/Makefile.am: add new documentation: generic-druid-framework.txt
* src/doc/generic-druid-framework.txt: new documentation

41
src/app-utils/file-utils.c
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@ -128,4 +128,45 @@ gncReadFile (const char * file, char ** data)
return size;
}
/**
* gnc_getline -- read a line from the input file, up to and including
* the newline.
*
* Args: line - pointer to hold the buffer for the whole line (allocated by
* this function)
* file - the file from which to read
* Return: the number of bytes read
*
* The caller MUST g_free() the line returned from this call in all
* cases where it is non-NULL!
*/
gint64
gnc_getline (gchar **line, FILE *file)
{
char str[BUFSIZ];
gint64 len;
GString *gs;
g_return_val_if_fail(line, -1);
*line = NULL;
g_return_val_if_fail(file, -1);
gs = g_string_new("");
while (fgets(str, sizeof(str), file) != NULL) {
g_string_append(gs, str);
len = strlen(str);
if (str[len-1] == '\n')
break;
}
len = gs->len;
*line = gs->str;
g_string_free(gs, FALSE);
return len;
}
/* ----------------------- END OF FILE --------------------- */

20
src/app-utils/file-utils.h
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@ -1,8 +1,9 @@
/********************************************************************\
* file-utils.h -- simple file utilities *
* file-utils.h -- simple file utilities *
* Copyright (C) 1997 Robin D. Clark *
* Copyright (C) 1998 Linas Vepstas *
* Copyright (C) 1998 Rob Browning *
* Copyright (C) 2004 Derek Atkins <derek@ihtfp.com> *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
@ -28,6 +29,8 @@
#ifndef GNC_FILE_UTILS_H
#define GNC_FILE_UTILS_H
#include <stdio.h> /* for FILE* */
char * gncFindFile (const char * filename);
/********************************************************************\
@ -41,4 +44,19 @@ char * gncFindFile (const char * filename);
int gncReadFile (const char * file, char ** data);
/**
* gnc_getline -- read a line from the input file, up to and including
* the newline.
*
* Args: line - pointer to hold the buffer for the whole line (allocated by
* this function)
* file - the file from which to read
* Return: the number of bytes read
*
* The caller MUST g_free() the line returned from this call in all
* cases where it is non-NULL!
*/
gint64 gnc_getline (gchar **line, FILE *file);
#endif /* GNC_FILE_UTILS_H */