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[flang] More documentation. These changes fix two bugs noted in f18 issue#121.

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Original-commit: flang-compiler/f18@f386472c5c
Reviewed-on: https://github.com/flang-compiler/f18/pull/122
Tree-same-pre-rewrite: false
This commit is contained in:
peter klausler 2018-07-12 14:58:06 -07:00
parent 0b8d07cc42
commit 3577ee5f5f
1 changed files with 3 additions and 1 deletions
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4
flang/documentation/ParserCombinators.md
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@ -88,7 +88,9 @@ They are `constexpr`, so they should be viewed as type-safe macros.
or with a warning if nonstandard usage warnings are enabled.
* `deprecated(p)` parses p if strict standard compliance is disabled,
with a warning if deprecated usage warnings are enabled.
* `inContext(msg, p)` runs p within an error message context.
* `inContext(msg, p)` runs p within an error message context; any
message that `p` generates will be tagged with `msg` as its
context. Contexts may nest.
* `withMessage(msg, p)` succeeds if `p` does, and if it does not,
it discards the messages from `p` and fails with the specified message.
* `recovery(p, q)` is equivalent to `p || q`, except that error messages