Annotation of mandoc/man_argv.c, Revision 1.1
1.1 ! kristaps 1: /* $Id: mdoc_argv.c,v 1.21 2009/07/20 14:12:27 kristaps Exp $ */
! 2: /*
! 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
! 4: *
! 5: * Permission to use, copy, modify, and distribute this software for any
! 6: * purpose with or without fee is hereby granted, provided that the above
! 7: * copyright notice and this permission notice appear in all copies.
! 8: *
! 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 16: */
! 17: #include <sys/types.h>
! 18:
! 19: #include <assert.h>
! 20: #include <stdlib.h>
! 21: #include <string.h>
! 22:
! 23: #include "libman.h"
! 24:
! 25:
! 26: int
! 27: man_args(struct man *m, int line, int *pos, char *buf, char **v)
! 28: {
! 29:
! 30: assert(*pos);
! 31: assert(' ' != buf[*pos]);
! 32:
! 33: if (0 == buf[*pos])
! 34: return(ARGS_EOLN);
! 35:
! 36: *v = &buf[*pos];
! 37:
! 38: /*
! 39: * Process a quoted literal. A quote begins with a double-quote
! 40: * and ends with a double-quote NOT preceded by a double-quote.
! 41: * Whitespace is NOT involved in literal termination.
! 42: */
! 43:
! 44: if ('\"' == buf[*pos]) {
! 45: *v = &buf[++(*pos)];
! 46:
! 47: for ( ; buf[*pos]; (*pos)++) {
! 48: if ('\"' != buf[*pos])
! 49: continue;
! 50: if ('\"' != buf[*pos + 1])
! 51: break;
! 52: (*pos)++;
! 53: }
! 54:
! 55: if (0 == buf[*pos]) {
! 56: if ( ! man_pwarn(m, line, *pos, WTQUOTE))
! 57: return(ARGS_ERROR);
! 58: return(ARGS_QWORD);
! 59: }
! 60:
! 61: buf[(*pos)++] = 0;
! 62:
! 63: if (0 == buf[*pos])
! 64: return(ARGS_QWORD);
! 65:
! 66: while (' ' == buf[*pos])
! 67: (*pos)++;
! 68:
! 69: if (0 == buf[*pos])
! 70: if ( ! man_pwarn(m, line, *pos, WTSPACE))
! 71: return(ARGS_ERROR);
! 72:
! 73: return(ARGS_QWORD);
! 74: }
! 75:
! 76: /*
! 77: * A non-quoted term progresses until either the end of line or
! 78: * a non-escaped whitespace.
! 79: */
! 80:
! 81: for ( ; buf[*pos]; (*pos)++)
! 82: if (' ' == buf[*pos] && '\\' != buf[*pos - 1])
! 83: break;
! 84:
! 85: if (0 == buf[*pos])
! 86: return(ARGS_WORD);
! 87:
! 88: buf[(*pos)++] = 0;
! 89:
! 90: while (' ' == buf[*pos])
! 91: (*pos)++;
! 92:
! 93: if (0 == buf[*pos])
! 94: if ( ! man_pwarn(m, line, *pos, WTSPACE))
! 95: return(ARGS_ERROR);
! 96:
! 97: return(ARGS_WORD);
! 98: }
! 99:
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