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47547: docs: Specify the exact kind of quoting which is assumed when parsing arithmetic expressions

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ivan tkachenko 2020-11-12 20:42:54 +03:00 committed by Daniel Shahaf
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@ -1,3 +1,8 @@
2020-11-16 ivan tkachenko <me@ratijas.tk>
* 47547: Doc/Zsh/arith.yo: docs: Specify the exact kind of
quoting which is assumed when parsing arithmetic expressions
2020-11-16 Jun-ichi Takimoto <takimoto-j@kba.biglobe.ne.jp> 2020-11-16 Jun-ichi Takimoto <takimoto-j@kba.biglobe.ne.jp>
* 47560: configure.ac, aczsh.m4: add necessary includes or * 47560: configure.ac, aczsh.m4: add necessary includes or

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Doc/Zsh/arith.yo
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@ -20,7 +20,7 @@ The tt(let) builtin command takes arithmetic expressions as arguments; each
is evaluated separately. Since many of the arithmetic operators, as well is evaluated separately. Since many of the arithmetic operators, as well
as spaces, require quoting, an alternative form is provided: for any as spaces, require quoting, an alternative form is provided: for any
command which begins with a `tt(LPAR()LPAR())', all the characters until a command which begins with a `tt(LPAR()LPAR())', all the characters until a
matching `tt(RPAR()RPAR())' are treated as a quoted expression and matching `tt(RPAR()RPAR())' are treated as a double-quoted expression and
arithmetic expansion performed as for an argument of tt(let). More arithmetic expansion performed as for an argument of tt(let). More
precisely, `tt(LPAR()LPAR())var(...)tt(RPAR()RPAR())' is equivalent to precisely, `tt(LPAR()LPAR())var(...)tt(RPAR()RPAR())' is equivalent to
`tt(let ")var(...)tt(")'. The return status is 0 if the arithmetic value `tt(let ")var(...)tt(")'. The return status is 0 if the arithmetic value