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add_char() simplified, using memcpy()

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updatestring() created
getstring() modified to take the max string length as an argument
This commit is contained in:
Frederic Culot 2006-11-02 13:40:50 +00:00
parent c87a7bd64d
commit 0a961944fb
1 changed files with 39 additions and 23 deletions
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60
src/utils.c
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@ -1,4 +1,4 @@
/* $calcurse: utils.c,v 1.12 2006/10/28 13:14:03 culot Exp $ */
/* $calcurse: utils.c,v 1.13 2006/11/02 13:40:50 culot Exp $ */
/*
* Calcurse - text-based organizer
@ -128,19 +128,16 @@ void del_char(int pos, char *str)
/* Add a character at the given position in string. */
char *add_char(int pos, int ch, char *str)
{
int new, buf;
int len;
char *buf;
str += pos;
buf = *str;
len = strlen(str) + 1;
buf = (char *) malloc(len);
(void)memcpy(buf, str, len);
*str++ = ch;
new = buf;
for (; *str; ++str) {
buf = *str;
*str = new;
new = buf;
}
*str++ = new;
return str;
(void)memcpy(str, buf, len);
return (str += len);
}
/*
@ -192,14 +189,14 @@ void showstring(WINDOW *win, int y, int x, char *str, int len, int pos)
* environment, otherwise the cursor would move from place to place without
* control.
*/
int getstring(WINDOW *win, int colr, char *string, int x, int y)
int getstring(WINDOW *win, int colr, char *str, int l, int x, int y)
{
int ch, newpos, len = 0;
char *orig;
orig = string;
orig = str;
custom_apply_attr(win, ATTR_HIGHEST);
for (; *string; ++string, ++len);
for (; *str; ++str, ++len);
newpos = x + len;
showstring(win, y, x, orig, len, newpos);
@ -214,7 +211,7 @@ int getstring(WINDOW *win, int colr, char *string, int x, int y)
if (len > 0) {
--newpos; --len;
if (newpos >= x + len)
--string;
--str;
else /* to be deleted inside string */
del_char(newpos, orig);
}
@ -226,9 +223,9 @@ int getstring(WINDOW *win, int colr, char *string, int x, int y)
break;
case CTRL('K'): /* delete to end-of-line */
string = orig + newpos;
for (; *string; ++string)
*string = 0;
str = orig + newpos;
for (; *str; ++str)
*str = 0;
len -= (len - newpos);
break;
@ -255,11 +252,11 @@ int getstring(WINDOW *win, int colr, char *string, int x, int y)
break;
default: /* insert one character */
if (len < MAX_LENGTH - 1) {
if (len < l - 1) {
if (newpos >= len)
*string++ = ch;
*str++ = ch;
else // char is to be inserted inside string
string = add_char(newpos, ch, orig);
str = add_char(newpos, ch, orig);
++len; ++newpos;
}
@ -267,11 +264,30 @@ int getstring(WINDOW *win, int colr, char *string, int x, int y)
showstring(win, y, x, orig, len, newpos);
doupdate();
}
*string = 0;
*str = 0;
custom_remove_attr(win, ATTR_HIGHEST);
return 0;
}
/* Update an already existing string. */
void updatestring(WINDOW *win, int colr, char **str, int x, int y) {
char *newstr;
int len;
newstr = (char *) malloc(MAX_LENGTH);
(void)memcpy(newstr, *str, strlen(*str) + 1);
if (getstring(win, colr, newstr, MAX_LENGTH, x, y) == 0) {
len = strlen(newstr) + 1;
if ((*str = (char *) realloc(*str, len)) == NULL) {
/* NOTREACHED */
fputs(_("FATAL ERROR in updatestring: out of memory\n"),
stderr);
exit(EXIT_FAILURE);
} else
(void)memcpy(*str, newstr, len);
}
}
/* checks if a string is only made of digits */
int is_all_digit(char *string)
{