我如何在 Asterisk 中使用 REPLACE 来转义输入

Question

我想在 Asterisk 中将 \ 转义为 \\ 和 " 为 \"。我试过使用 REPLACE，但无法正常工作。我目前的做法如下

exten => sms,1,Set(UNSAFESMSTXT=${REPLACE(SMSTXT,\,\\)})
exten => sms,2,Set(SAFESMSTXT=${REPLACE(UNSAFESMSTXT,",\")})
; Echo escaped input to terminal safely
exten => sms,n,System(echo "${SAFESMSTXT}")

当我发送 echo hi"echo hi 时，我得到了错误

ERROR[8239]: func_strings.c:804 replace: The characters to search for and the variable name must not be empty.

如果有帮助，我会使用 chan_mobile。

Answer 1

功能描述中的nto cleat是什么？

Asterisk func REPLACE
Synopsis:
Replace a set of characters in a given string with another character.

Description:
Iterates through a string replacing all the <find-chars> with <replace-ch
ar>. <replace-char> may be either empty or contain one character. If empty,
all <find-chars> will be deleted from the output.
NOTE: The replacement only occurs in the output. The original variable is
not altered.

Syntax:
REPLACE(varname,find-chars[,replace-char])

您使用了 \" 而不是 "

我如何在 Asterisk 中使用 REPLACE 来转义输入

How do I use REPLACE in Asterisk to escape input

asterisk