split_words.c

/*
** split_words.c for zssh
**
** Made by Matthieu Lucotte
** Login   <gounter@users.sourceforge.net>
**
** Started on  Thu Jun 29 19:11:06 2000 Matthieu Lucotte
** Last update Sat Oct  6 23:40:56 2001 Matthieu Lucotte
*/

#include "zssh.h"

void pc_new_tab(int *argc, char ***argv)
{
	char **pt;

	pt = smalloc((*argc + TAB_STEP) * sizeof(char *));
	memcpy(pt, *argv, *argc * sizeof(char *));
	free(*argv);
	*argv = pt;
}


void pc_mk_word(char **str, int *pos, int *argc, char ***argv)
{
	int len;

	if ((len = *pos)) {
		(*argv)[(*argc)++] = str_n_dup(*str, len);
		if (!(*argc % TAB_STEP))
			pc_new_tab(argc, argv);
		*str += len;
		*pos = 0;
	}
	while (**str && mi_is_whitespace(**str))
		(*str)++;
}

int pc_ok_split(char *comm, int pos, int i)
{
	if ((!pos || mi_is_whitespace(comm[pos - 1])))
		return 1;
	return 0;
}

void pc_split_words(char *comm, int *argc, char ***argv)
{
	int pos;
	int i;

	*argv = smalloc(TAB_STEP * sizeof(char *));
	*argc = 0;
	while (mi_is_whitespace(*comm))
		comm++;
	for (pos = 0; comm[pos];)
		if ((i = pc_escape_multi(comm, &pos, ESC_COMMON)) <= 0) {
			if (mi_is_whitespace(comm[pos]))
				pc_mk_word(&comm, &pos, argc, argv);
			else
				pos++;
		}
	pc_mk_word(&comm, &pos, argc, argv);
	(*argv)[(*argc)++] = 0;
}