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add EVAL function, deprecate Eval application (bug #4277)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5689 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2005-05-15 23:53:11 +00:00
parent 9cea81b035
commit 2638192439
2 changed files with 38 additions and 0 deletions
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6
apps/app_eval.c
View File

@@ -49,6 +49,12 @@ static int eval_exec(struct ast_channel *chan, void *data)
int res=0; int res=0;
struct localuser *u; struct localuser *u;
char *s, *newvar=NULL, tmp[MAXRESULT]; char *s, *newvar=NULL, tmp[MAXRESULT];
static int dep_warning = 0;
if (!dep_warning) {
ast_log(LOG_WARNING, "This application has been deprecated in favor of the dialplan function, EVAL\n");
dep_warning = 1;
}
LOCAL_USER_ADD(u); LOCAL_USER_ADD(u);

32
funcs/func_strings.c
View File

@@ -171,3 +171,35 @@ struct ast_custom_function strftime_function = {
.syntax = "STRFTIME([<epoch>][,[timezone][,format]])", .syntax = "STRFTIME([<epoch>][,[timezone][,format]])",
.read = acf_strftime, .read = acf_strftime,
}; };
static char *function_eval(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
{
if (!data || ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "EVAL requires an argument: EVAL(<variable>)\n");
return buf;
}
pbx_substitute_variables_helper(chan, data, buf, len - 1);
return buf;
}
#ifndef BUILTIN_FUNC
static
#endif
struct ast_custom_function eval_function = {
.name = "EVAL",
.synopsis = "Evaluate stored variables.",
.syntax = "EVAL(<variable>)",
.desc = "Using EVAL basically causes a string to be evaluated twice.\n"
"When a variable or expression is in the dialplan, it will be\n"
"evaluated at runtime. However, if the result of the evaluation\n"
"is in fact a variable or expression, using EVAL will have it\n"
"evaluated a second time. For example, if the variable ${MYVAR}\n"
"contains \"${OTHERVAR}\", then the result of putting ${EVAL(${MYVAR})}\n"
"in the dialplan will be the contents of the variable, OTHERVAR.\n"
"Normally, by just putting ${MYVAR} in the dialplan, you would be\n"
"left with \"${OTHERVAR}\".\n",
.read = function_eval,
};