tmp/tmpipxunr02/{from.md → to.md}
RENAMED
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@@ -23,31 +23,31 @@ namespace std::regex_constants {
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inline constexpr syntax_option_type multiline = unspecified;
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}
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```
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The type `syntax_option_type` is an *implementation-defined* bitmask
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type
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`
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grammar
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**Table: `syntax_option_type` effects** <a id="
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| Element | Effect(s) if set |
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| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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| % `icase` | Specifies that matching of regular expressions against a character container sequence shall be performed without regard to case. \
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| % `nosubs` | Specifies that no sub-expressions shall be considered to be marked, so that when a regular expression is matched against a character container sequence, no sub-expression matches shall be stored in the supplied `match_results`
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| % `optimize` | Specifies that the regular expression engine should pay more attention to the speed with which regular expressions are matched, and less to the speed with which regular expression objects are constructed. Otherwise it has no detectable effect on the program output. \
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| % `collate` | Specifies that character ranges of the form `"[a-b]"` shall be locale sensitive. \
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| % `ECMAScript` | Specifies that the grammar recognized by the regular expression engine shall be that used by ECMAScript in ECMA-262, as modified in~ [[re.grammar]]. \indextext{ECMAScript}% \
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| % `basic` | Specifies that the grammar recognized by the regular expression engine shall be that used by basic regular expressions in POSIX, Base Definitions and Headers, Section 9
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| % `extended` | Specifies that the grammar recognized by the regular expression engine shall be that used by extended regular expressions in POSIX, Base Definitions and Headers, Section 9
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| % `awk` | Specifies that the grammar recognized by the regular expression engine shall be that used by the utility awk in POSIX. \indextext{\idxcode{awk}}% \
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| % `grep` | Specifies that the grammar recognized by the regular expression engine shall be that used by the utility grep in POSIX. \indextext{\idxcode{grep}}% \
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| % `egrep` | Specifies that the grammar recognized by the regular expression engine shall be that used by the utility grep when given the -E option in POSIX. \indextext{\idxcode{egrep}}% \
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| % `multiline` | Specifies that `
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### Bitmask type `match_flag_type` <a id="re.matchflag">[[re.matchflag]]</a>
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``` cpp
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@@ -67,37 +67,36 @@ namespace std::regex_constants {
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inline constexpr match_flag_type format_no_copy = unspecified;
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inline constexpr match_flag_type format_first_only = unspecified;
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}
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```
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The type `match_flag_type` is an *implementation-defined* bitmask type
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[[bitmask.types]]
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`match_default` and `format_default`, are bitmask elements. The
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`match_default` and `format_default` constants are empty bitmasks.
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Matching a regular expression against a sequence of characters
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\[`first`, `last`) proceeds according to the rules of the grammar
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specified for the regular expression object, modified according to the
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effects listed in
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set.
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**Table: `regex_constants::match_flag_type` effects when obtaining a match against a
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character container sequence {[}`first`, `last`{)}.** <a id="
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| Element | Effect(s) if set |
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| -------------------------------------------------------------
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| % \
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| % \
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| % \
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| % \
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| % \
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| % \
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| % \
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| % \
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| % \
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| % \
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| % \
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| % \
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### Implementation-defined `error_type` <a id="re.err">[[re.err]]</a>
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``` cpp
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@@ -117,15 +116,15 @@ namespace std::regex_constants {
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inline constexpr error_type error_complexity = unspecified;
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inline constexpr error_type error_stack = unspecified;
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}
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```
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The type `error_type` is an *implementation-defined* enumerated type
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[[enumerated.types]]
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conditions described in
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**Table: `error_type` values in the C locale** <a id="
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| Value | Error condition |
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| -------------------- | ----------------------------------------------------------------------------------------------------------------------- |
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| `error_collate` | The expression contained an invalid collating element name. |
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| % `error_ctype` | The expression contained an invalid character class name. |
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inline constexpr syntax_option_type multiline = unspecified;
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}
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```
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The type `syntax_option_type` is an *implementation-defined* bitmask
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type [[bitmask.types]]. Setting its elements has the effects listed in
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[[re.synopt]]. A valid value of type `syntax_option_type` shall have at
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most one of the grammar elements `ECMAScript`, `basic`, `extended`,
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`awk`, `grep`, `egrep`, set. If no grammar element is set, the default
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grammar is `ECMAScript`.
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**Table: `syntax_option_type` effects** <a id="re.synopt">[re.synopt]</a>
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| Element | Effect(s) if set |
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| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| % `icase` | Specifies that matching of regular expressions against a character container sequence shall be performed without regard to case. \indexlibrarymember{syntax_option_type}{icase}% |
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| % `nosubs` | Specifies that no sub-expressions shall be considered to be marked, so that when a regular expression is matched against a character container sequence, no sub-expression matches shall be stored in the supplied `match_results` object. \indexlibrarymember{syntax_option_type}{nosubs}% |
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| % `optimize` | Specifies that the regular expression engine should pay more attention to the speed with which regular expressions are matched, and less to the speed with which regular expression objects are constructed. Otherwise it has no detectable effect on the program output. \indexlibrarymember{syntax_option_type}{optimize}% |
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| % `collate` | Specifies that character ranges of the form `"[a-b]"` shall be locale sensitive. \indexlibrarymember{syntax_option_type}{collate}% \indextext{locale}% |
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| % `ECMAScript` | Specifies that the grammar recognized by the regular expression engine shall be that used by ECMAScript in ECMA-262, as modified in~ [[re.grammar]]. \xref ECMA-262 15.10 \indextext{ECMAScript}% \indexlibrarymember{syntax_option_type}{ECMAScript}% |
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| % `basic` | Specifies that the grammar recognized by the regular expression engine shall be that used by basic regular expressions in POSIX. \xref POSIX, Base Definitions and Headers, Section 9.3 \indextext{POSIX!regular expressions}% \indexlibrarymember{syntax_option_type}{basic}% |
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| % `extended` | Specifies that the grammar recognized by the regular expression engine shall be that used by extended regular expressions in POSIX. \xref POSIX, Base Definitions and Headers, Section 9.4 \indextext{POSIX!extended regular expressions}% \indexlibrarymember{syntax_option_type}{extended}% |
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| % `awk` | Specifies that the grammar recognized by the regular expression engine shall be that used by the utility awk in POSIX. \indextext{\idxcode{awk}}% \indexlibrarymember{syntax_option_type}{awk}% |
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| % `grep` | Specifies that the grammar recognized by the regular expression engine shall be that used by the utility grep in POSIX. \indextext{\idxcode{grep}}% \indexlibrarymember{syntax_option_type}{grep}% |
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| % `egrep` | Specifies that the grammar recognized by the regular expression engine shall be that used by the utility grep when given the -E option in POSIX. \indextext{\idxcode{egrep}}% \indexlibrarymember{syntax_option_type}{egrep}% |
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| % `multiline` | Specifies that `^` shall match the beginning of a line and `$` shall match the end of a line, if the `ECMAScript` engine is selected. \indextext{\idxcode{multiline}}% \indexlibrarymember{syntax_option_type}{multiline}% |
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### Bitmask type `match_flag_type` <a id="re.matchflag">[[re.matchflag]]</a>
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``` cpp
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inline constexpr match_flag_type format_no_copy = unspecified;
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inline constexpr match_flag_type format_first_only = unspecified;
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}
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```
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The type `match_flag_type` is an *implementation-defined* bitmask type
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[[bitmask.types]]. The constants of that type, except for
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`match_default` and `format_default`, are bitmask elements. The
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`match_default` and `format_default` constants are empty bitmasks.
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Matching a regular expression against a sequence of characters
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\[`first`, `last`) proceeds according to the rules of the grammar
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specified for the regular expression object, modified according to the
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effects listed in [[re.matchflag]] for any bitmask elements set.
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**Table: `regex_constants::match_flag_type` effects when obtaining a match against a
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character container sequence {[}`first`, `last`{)}.** <a id="re.matchflag">[re.matchflag]</a>
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| Element | Effect(s) if set |
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| ------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| % \indexlibraryglobal{match_not_bol}% `match_not_bol` | The first character in the sequence {[}`first`, `last`{)} shall be treated as though it is not at the beginning of a line, so the character \verb|^| in the regular expression shall not match {[}`first`, `first`{)}. |
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| % \indexlibraryglobal{match_not_eol}% `match_not_eol` | The last character in the sequence {[}`first`, `last`{)} shall be treated as though it is not at the end of a line, so the character \verb|"$"| in the regular expression shall not match {[}`last`, `last`{)}. |
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| % \indexlibraryglobal{match_not_bow}% `match_not_bow` | The expression \verb|"b"| shall not match the sub-sequence {[}`first`, `first`{)}. |
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| % \indexlibraryglobal{match_not_eow}% `match_not_eow` | The expression \verb|"b"| shall not match the sub-sequence {[}`last`, `last`{)}. |
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| % \indexlibraryglobal{match_any}% `match_any` | If more than one match is possible then any match is an acceptable result. |
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| % \indexlibraryglobal{match_not_null}% `match_not_null` | The expression shall not match an empty sequence. |
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| % \indexlibraryglobal{match_continuous}% `match_continuous` | The expression shall only match a sub-sequence that begins at `first`. |
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| % \indexlibraryglobal{match_prev_avail}% `match_prev_avail` | \verb!--first! is a valid iterator position. When this flag is set the flags `match_not_bol` and `match_not_bow` shall be ignored by the regular expression algorithms [[re.alg]] and iterators [[re.iter]]. |
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| % \indexlibraryglobal{format_default}% `format_default` | When a regular expression match is to be replaced by a new string, the new string shall be constructed using the rules used by the ECMAScript replace function in ECMA-262, part 15.5.4.11 String.prototype.replace. In addition, during search and replace operations all non-overlapping occurrences of the regular expression shall be located and replaced, and sections of the input that did not match the expression shall be copied unchanged to the output string. |
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| % \indexlibraryglobal{format_sed}% `format_sed` | When a regular expression match is to be replaced by a new string, the new string shall be constructed using the rules used by the sed utility in POSIX. |
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| % \indexlibraryglobal{format_no_copy}% `format_no_copy` | During a search and replace operation, sections of the character container sequence being searched that do not match the regular expression shall not be copied to the output string. |
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| % \indexlibraryglobal{format_first_only}% `format_first_only` | When specified during a search and replace operation, only the first occurrence of the regular expression shall be replaced. |
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### Implementation-defined `error_type` <a id="re.err">[[re.err]]</a>
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``` cpp
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inline constexpr error_type error_complexity = unspecified;
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inline constexpr error_type error_stack = unspecified;
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}
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```
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The type `error_type` is an *implementation-defined* enumerated type
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[[enumerated.types]]. Values of type `error_type` represent the error
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conditions described in [[re.err]]:
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**Table: `error_type` values in the C locale** <a id="re.err">[re.err]</a>
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| Value | Error condition |
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| -------------------- | ----------------------------------------------------------------------------------------------------------------------- |
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| `error_collate` | The expression contained an invalid collating element name. |
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| % `error_ctype` | The expression contained an invalid character class name. |
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