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cmdline.c
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C/C++ Source or Header
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1992-03-27
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2KB
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64 lines
/* cmdline.c: routines to help in parsing command lines.
Copyright (C) 1992 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
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "config.h"
#include "cmdline.h"
/* This routine takes a string L consisting of unsigned integers
separated by commas and returns a vector of the integers, as numbers.
A element is appended to the vector. */
int *
scan_unsigned_list (string l)
{
string map;
unsigned length = 1;
int *vector = xmalloc (sizeof (int));
for (map = strtok (l, ","); map != NULL; map = strtok (NULL, ","))
{
length++;
vector = xrealloc (vector, length * sizeof (int));
vector[length - 2] = atou (map);
if (vector[length - 2] < 0)
WARNING1 ("Unsigned number %u is too large", vector[length - 2]);
}
vector[length - 1] = -1;
return vector;
}
/* Return the <number> substring in `<name>.<number><stuff>', if S has
that form. If it doesn't, return NULL. */
string
find_dpi (string s)
{
unsigned dpi_number;
string extension = strrchr (s, '.');
if (extension != NULL)
if (sscanf (extension + 1, "%u", &dpi_number) == 1)
return utoa (dpi_number);
return NULL;
}