diff options
Diffstat (limited to 'funcs/func_strings.c')
-rw-r--r-- | funcs/func_strings.c | 132 |
1 files changed, 129 insertions, 3 deletions
diff --git a/funcs/func_strings.c b/funcs/func_strings.c index db1e8af2f..4df364d32 100644 --- a/funcs/func_strings.c +++ b/funcs/func_strings.c @@ -276,6 +276,90 @@ AST_THREADSTORAGE(result_buf); <para>Example: ${QUOTE(ab"c"de)} will return "abcde"</para> </description> </function> +<<<<<<< .working +======= + <function name="CSV_QUOTE" language="en_US"> + <synopsis> + Quotes a given string for use in a CSV file, escaping embedded quotes as necessary + </synopsis> + <syntax> + <parameter name="string" required="true" /> + </syntax> + <description> + <para>Example: ${CSV_QUOTE("a,b" 123)} will return """a,b"" 123"</para> + </description> + </function> + <function name="SHIFT" language="en_US"> + <synopsis> + Removes and returns the first item off of a variable containing delimited text + </synopsis> + <syntax> + <parameter name="varname" required="true" /> + <parameter name="delimiter" required="false" default="," /> + </syntax> + <description> + <para>Example:</para> + <para>exten => s,1,Set(array=one,two,three)</para> + <para>exten => s,n,While($["${SET(var=${SHIFT(array)})}" != ""])</para> + <para>exten => s,n,NoOp(var is ${var})</para> + <para>exten => s,n,EndWhile</para> + <para>This would iterate over each value in array, left to right, and + would result in NoOp(var is one), NoOp(var is two), and + NoOp(var is three) being executed. + </para> + </description> + </function> + <function name="POP" language="en_US"> + <synopsis> + Removes and returns the last item off of a variable containing delimited text + </synopsis> + <syntax> + <parameter name="varname" required="true" /> + <parameter name="delimiter" required="false" default="," /> + </syntax> + <description> + <para>Example:</para> + <para>exten => s,1,Set(array=one,two,three)</para> + <para>exten => s,n,While($["${SET(var=${POP(array)})}" != ""])</para> + <para>exten => s,n,NoOp(var is ${var})</para> + <para>exten => s,n,EndWhile</para> + <para>This would iterate over each value in array, right to left, and + would result in NoOp(var is three), NoOp(var is two), and + NoOp(var is one) being executed. + </para> + </description> + </function> + <function name="PUSH" language="en_US"> + <synopsis> + Appends one or more values to the end of a variable containing delimited text + </synopsis> + <syntax> + <parameter name="varname" required="true" /> + <parameter name="delimiter" required="false" default="," /> + </syntax> + <description> + <para>Example: Set(PUSH(array)=one,two,three) would append one, + two, and three to the end of the values stored in the variable + "array". + </para> + </description> + </function> + <function name="UNSHIFT" language="en_US"> + <synopsis> + Inserts one or more values to the beginning of a variable containing delimited text + </synopsis> + <syntax> + <parameter name="varname" required="true" /> + <parameter name="delimiter" required="false" default="," /> + </syntax> + <description> + <para>Example: Set(UNSHIFT(array)=one,two,three) would insert one, + two, and three before the values stored in the variable + "array". + </para> + </description> + </function> +>>>>>>> .merge-right.r221368 ***/ static int function_fieldqty(struct ast_channel *chan, const char *cmd, @@ -718,6 +802,12 @@ static struct ast_custom_function array_function = { static int quote(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len) { char *bufptr = buf, *dataptr = data; + + if (len < 3){ /* at least two for quotes and one for binary zero */ + ast_log(LOG_ERROR, "Not enough buffer"); + return -1; + } + if (ast_strlen_zero(data)) { ast_log(LOG_WARNING, "No argument specified!\n"); ast_copy_string(buf, "\"\"", len); @@ -725,7 +815,7 @@ static int quote(struct ast_channel *chan, const char *cmd, char *data, char *bu } *bufptr++ = '"'; - for (; bufptr < buf + len - 1; dataptr++) { + for (; bufptr < buf + len - 3; dataptr++) { if (*dataptr == '\\') { *bufptr++ = '\\'; *bufptr++ = '\\'; @@ -748,9 +838,43 @@ static struct ast_custom_function quote_function = { .read = quote, }; +static int csv_quote(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len) +{ + char *bufptr = buf, *dataptr = data; + + if (len < 3){ /* at least two for quotes and one for binary zero */ + ast_log(LOG_ERROR, "Not enough buffer"); + return -1; + } + + if (ast_strlen_zero(data)) { + ast_log(LOG_WARNING, "No argument specified!\n"); + ast_copy_string(buf,"\"\"",len); + return 0; + } + + *bufptr++ = '"'; + for (; bufptr < buf + len - 3; dataptr++){ + if (*dataptr == '"') { + *bufptr++ = '"'; + *bufptr++ = '"'; + } else if (*dataptr == '\0') { + break; + } else { + *bufptr++ = *dataptr; + } + } + *bufptr++ = '"'; + *bufptr='\0'; + return 0; +} + +static struct ast_custom_function csv_quote_function = { + .name = "CSV_QUOTE", + .read = csv_quote, +}; -static int len(struct ast_channel *chan, const char *cmd, char *data, char *buf, - size_t buflen) +static int len(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t buflen) { int length = 0; @@ -939,6 +1063,7 @@ static int unload_module(void) res |= ast_custom_function_unregister(®ex_function); res |= ast_custom_function_unregister(&array_function); res |= ast_custom_function_unregister("e_function); + res |= ast_custom_function_unregister(&csv_quote_function); res |= ast_custom_function_unregister(&len_function); res |= ast_custom_function_unregister(&strftime_function); res |= ast_custom_function_unregister(&strptime_function); @@ -963,6 +1088,7 @@ static int load_module(void) res |= ast_custom_function_register(®ex_function); res |= ast_custom_function_register(&array_function); res |= ast_custom_function_register("e_function); + res |= ast_custom_function_register(&csv_quote_function); res |= ast_custom_function_register(&len_function); res |= ast_custom_function_register(&strftime_function); res |= ast_custom_function_register(&strptime_function); |