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ICU 76.1 76.1
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C++ API: MessagePattern class: Parses and represents ICU MessageFormat patterns. More...
Go to the source code of this file.
Data Structures | |
| class | icu::MessagePattern |
| Parses and represents ICU MessageFormat patterns. More... | |
| class | icu::MessagePattern::Part |
| A message pattern "part", representing a pattern parsing event. More... | |
Namespaces | |
| namespace | icu |
| File coll.h. | |
Macros | |
| #define | UMSGPAT_ARG_TYPE_HAS_PLURAL_STYLE(argType) ((argType)==UMSGPAT_ARG_TYPE_PLURAL || (argType)==UMSGPAT_ARG_TYPE_SELECTORDINAL) |
| Returns true if the argument type has a plural style part sequence and semantics, for example UMSGPAT_ARG_TYPE_PLURAL and UMSGPAT_ARG_TYPE_SELECTORDINAL. | |
| #define | UMSGPAT_NO_NUMERIC_VALUE ((double)(-123456789)) |
| Special value that is returned by getNumericValue(Part) when no numeric value is defined for a part. | |
Typedefs | |
| typedef enum UMessagePatternApostropheMode | UMessagePatternApostropheMode |
| typedef enum UMessagePatternPartType | UMessagePatternPartType |
| typedef enum UMessagePatternArgType | UMessagePatternArgType |
C++ API: MessagePattern class: Parses and represents ICU MessageFormat patterns.
Definition in file messagepattern.h.
| #define UMSGPAT_ARG_TYPE_HAS_PLURAL_STYLE | ( | argType | ) | ((argType)==UMSGPAT_ARG_TYPE_PLURAL || (argType)==UMSGPAT_ARG_TYPE_SELECTORDINAL) |
Returns true if the argument type has a plural style part sequence and semantics, for example UMSGPAT_ARG_TYPE_PLURAL and UMSGPAT_ARG_TYPE_SELECTORDINAL.
Definition at line 272 of file messagepattern.h.
| #define UMSGPAT_NO_NUMERIC_VALUE ((double)(-123456789)) |
Special value that is returned by getNumericValue(Part) when no numeric value is defined for a part.
Definition at line 299 of file messagepattern.h.
Definition at line 96 of file messagepattern.h.
| typedef enum UMessagePatternArgType UMessagePatternArgType |
Definition at line 264 of file messagepattern.h.
| typedef enum UMessagePatternPartType UMessagePatternPartType |
Definition at line 211 of file messagepattern.h.
| anonymous enum |
| Enumerator | |
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| UMSGPAT_ARG_NAME_NOT_NUMBER | Return value from MessagePattern.validateArgumentName() for when the string is a valid "pattern identifier" but not a number.
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| UMSGPAT_ARG_NAME_NOT_VALID | Return value from MessagePattern.validateArgumentName() for when the string is invalid. It might not be a valid "pattern identifier", or it have only ASCII digits but there is a leading zero or the number is too large.
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Definition at line 275 of file messagepattern.h.
Mode for when an apostrophe starts quoted literal text for MessageFormat output.
The default is DOUBLE_OPTIONAL unless overridden via uconfig.h (UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE).
A pair of adjacent apostrophes always results in a single apostrophe in the output, even when the pair is between two single, text-quoting apostrophes.
The following table shows examples of desired MessageFormat.format() output with the pattern strings that yield that output.
| Desired output | DOUBLE_OPTIONAL | DOUBLE_REQUIRED |
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| I see {many} | I see '{many}' | (same) |
| I said {'Wow!'} | I said '{''Wow!''}' | (same) |
| I don't know | I don't know OR I don''t know | I don''t know |
| Enumerator | |
|---|---|
| UMSGPAT_APOS_DOUBLE_OPTIONAL | A literal apostrophe is represented by either a single or a double apostrophe pattern character. Within a MessageFormat pattern, a single apostrophe only starts quoted literal text if it immediately precedes a curly brace {}, or a pipe symbol | if inside a choice format, or a pound symbol # if inside a plural format. This is the default behavior starting with ICU 4.8.
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| UMSGPAT_APOS_DOUBLE_REQUIRED | A literal apostrophe must be represented by a double apostrophe pattern character. A single apostrophe always starts quoted literal text. This is the behavior of ICU 4.6 and earlier, and of the JDK.
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Definition at line 70 of file messagepattern.h.
Argument type constants.
Returned by Part.getArgType() for ARG_START and ARG_LIMIT parts.
Messages nested inside an argument are each delimited by MSG_START and MSG_LIMIT, with a nesting level one greater than the surrounding message.
| Enumerator | |
|---|---|
| UMSGPAT_ARG_TYPE_NONE | The argument has no specified type.
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| UMSGPAT_ARG_TYPE_SIMPLE | The argument has a "simple" type which is provided by the ARG_TYPE part. An ARG_STYLE part might follow that.
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| UMSGPAT_ARG_TYPE_CHOICE | The argument is a ChoiceFormat with one or more ((ARG_INT | ARG_DOUBLE), ARG_SELECTOR, message) tuples.
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| UMSGPAT_ARG_TYPE_PLURAL | The argument is a cardinal-number PluralFormat with an optional ARG_INT or ARG_DOUBLE offset (e.g., offset:1) and one or more (ARG_SELECTOR [explicit-value] message) tuples. If the selector has an explicit value (e.g., =2), then that value is provided by the ARG_INT or ARG_DOUBLE part preceding the message. Otherwise the message immediately follows the ARG_SELECTOR.
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| UMSGPAT_ARG_TYPE_SELECT | The argument is a SelectFormat with one or more (ARG_SELECTOR, message) pairs.
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| UMSGPAT_ARG_TYPE_SELECTORDINAL | The argument is an ordinal-number PluralFormat with the same style parts sequence and semantics as UMSGPAT_ARG_TYPE_PLURAL.
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Definition at line 221 of file messagepattern.h.
MessagePattern::Part type constants.
| Enumerator | |
|---|---|
| UMSGPAT_PART_TYPE_MSG_START | Start of a message pattern (main or nested). The length is 0 for the top-level message and for a choice argument sub-message, otherwise 1 for the '{'. The value indicates the nesting level, starting with 0 for the main message. There is always a later MSG_LIMIT part.
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| UMSGPAT_PART_TYPE_MSG_LIMIT | End of a message pattern (main or nested). The length is 0 for the top-level message and the last sub-message of a choice argument, otherwise 1 for the '}' or (in a choice argument style) the '|'. The value indicates the nesting level, starting with 0 for the main message.
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| UMSGPAT_PART_TYPE_SKIP_SYNTAX | Indicates a substring of the pattern string which is to be skipped when formatting. For example, an apostrophe that begins or ends quoted text would be indicated with such a part. The value is undefined and currently always 0.
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| UMSGPAT_PART_TYPE_INSERT_CHAR | Indicates that a syntax character needs to be inserted for auto-quoting. The length is 0. The value is the character code of the insertion character. (U+0027=APOSTROPHE)
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| UMSGPAT_PART_TYPE_REPLACE_NUMBER | Indicates a syntactic (non-escaped) # symbol in a plural variant. When formatting, replace this part's substring with the (value-offset) for the plural argument value. The value is undefined and currently always 0.
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| UMSGPAT_PART_TYPE_ARG_START | Start of an argument. The length is 1 for the '{'. The value is the ordinal value of the ArgType. Use getArgType(). This part is followed by either an ARG_NUMBER or ARG_NAME, followed by optional argument sub-parts (see UMessagePatternArgType constants) and finally an ARG_LIMIT part.
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| UMSGPAT_PART_TYPE_ARG_LIMIT | End of an argument. The length is 1 for the '}'. The value is the ordinal value of the ArgType. Use getArgType().
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| UMSGPAT_PART_TYPE_ARG_NUMBER | The argument number, provided by the value.
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| UMSGPAT_PART_TYPE_ARG_NAME | The argument name. The value is undefined and currently always 0.
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| UMSGPAT_PART_TYPE_ARG_TYPE | The argument type. The value is undefined and currently always 0.
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| UMSGPAT_PART_TYPE_ARG_STYLE | The argument style text. The value is undefined and currently always 0.
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| UMSGPAT_PART_TYPE_ARG_SELECTOR | A selector substring in a "complex" argument style. The value is undefined and currently always 0.
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| UMSGPAT_PART_TYPE_ARG_INT | An integer value, for example the offset or an explicit selector value in a PluralFormat style. The part value is the integer value.
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| UMSGPAT_PART_TYPE_ARG_DOUBLE | A numeric value, for example the offset or an explicit selector value in a PluralFormat style. The part value is an index into an internal array of numeric values; use getNumericValue().
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Definition at line 102 of file messagepattern.h.
1.9.8