fdo-mirrors/plymouth
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/plymouth/plymouth.git synced 2026-05-11 05:48:24 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

[script] Add SubString function to the script string library

Browse source 
Adds the SubString function which returns a string segment. The two paramiters
are the sub-string start and end indicies. Negative start and end values return
a NULL, as does start index being beyond the end index. Start being beyond the
end of the string returns an empty string.
This commit is contained in:
Richard Maw 2010-03-10 20:28:09 +00:00 • committed by Charlie Brej
parent bb96d5ad12
commit 9b3a1b672b
1 changed files with 40 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

40
src/plugins/splash/script/script-lib-string.c
View file

@ -25,6 +25,7 @@
#include "script-execute.h"
#include "script-object.h"
#include "script-lib-string.h"
#include "ply-utils.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
@ -62,6 +63,38 @@ static script_return_t script_lib_string_char_at (script_state_t *state,
return script_return_obj(script_obj_new_string (charstring));
}
static script_return_t script_lib_string_sub_string (script_state_t *state,
void *user_data)
{
char *text = script_obj_as_string (state->this);
int start = script_obj_hash_get_number (state->local, "start");
int end = script_obj_hash_get_number (state->local, "end");
int text_count;
char* substring;
script_obj_t *substring_obj;
if (!text || start < 0 || end < start)
{
free (text);
return script_return_obj_null ();
}
for (text_count = 0; text_count < start; text_count++)
{
if (text[text_count] == '\0')
{
free (text);
return script_return_obj(script_obj_new_string (""));
}
}
substring = strndup(&text[text_count], end - start);
substring_obj = script_obj_new_string (substring);
free (substring);
free (text);
return script_return_obj(substring_obj);
}
script_lib_string_data_t *script_lib_string_setup (script_state_t *state)
{
script_lib_string_data_t *data = malloc (sizeof (script_lib_string_data_t));
@ -73,6 +106,13 @@ script_lib_string_data_t *script_lib_string_setup (script_state_t *state)
NULL,
"index",
NULL);
script_add_native_function (string_hash,
"SubString",
script_lib_string_sub_string,
NULL,
"start",
"end",
NULL);
script_obj_unref (string_hash);
data->script_main_op = script_parse_string (script_lib_string_string, "script-lib-string.script");
script_return_t ret = script_execute (state, data->script_main_op);