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commands: require set variable to start with $

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This commit is contained in:
Ian Fan 2018-08-07 11:46:11 +01:00
parent c1af79532f
commit 7717c2231a
2 changed files with 2 additions and 12 deletions
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12
sway/commands/set.c
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@ -25,23 +25,13 @@ void free_sway_variable(struct sway_variable *var) {
}
struct cmd_results *cmd_set(int argc, char **argv) {
char *tmp;
struct cmd_results *error = NULL;
if ((error = checkarg(argc, "set", EXPECTED_AT_LEAST, 2))) {
return error;
}
if (argv[0][0] != '$') {
wlr_log(WLR_INFO, "Warning: variable '%s' doesn't start with $", argv[0]);
size_t size = snprintf(NULL, 0, "$%s", argv[0]);
tmp = malloc(size + 1);
if (!tmp) {
return cmd_results_new(CMD_FAILURE, "set", "Not possible to create variable $'%s'", argv[0]);
}
snprintf(tmp, size+1, "$%s", argv[0]);
argv[0] = tmp;
return cmd_results_new(CMD_INVALID, "set", "variable '%s' must start with $", argv[0]);
}
struct sway_variable *var = NULL;

2
sway/sway.5.scd
View file

@ -51,7 +51,7 @@ The following commands may only be used in the configuration file.
*wordexp*(3) for details). The same include file can only be included once;
subsequent attempts will be ignored.
*set* <name> <value>
*set* $<name> <value>
Sets variable $_name_ to _value_. You can use the new variable in the
arguments of future commands.