585 lines
23 KiB
C
585 lines
23 KiB
C
/*
|
|
*******************************************************************************
|
|
* Copyright (C) 1996-2001, International Business Machines Corporation and others. All Rights Reserved.
|
|
*******************************************************************************
|
|
*
|
|
* file name: umsg.h
|
|
* encoding: US-ASCII
|
|
* tab size: 8 (not used)
|
|
* indentation:4
|
|
*
|
|
* Change history:
|
|
*
|
|
* 08/5/2001 Ram Added C wrappers for C++ API.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifndef UMSG_H
|
|
#define UMSG_H
|
|
|
|
#include "unicode/utypes.h"
|
|
#include "unicode/parseerr.h"
|
|
#include <stdarg.h>
|
|
/**
|
|
* \file
|
|
* \brief C API: MessageFormat
|
|
*
|
|
* <h2>Message Format C API </h2>
|
|
*
|
|
* Provides means to produce concatenated messages in language-neutral way.
|
|
* Use this for all concatenations that show up to end users.
|
|
* <P>
|
|
* Takes a set of objects, formats them, then inserts the formatted
|
|
* strings into the pattern at the appropriate places.
|
|
* <P>
|
|
* Here are some examples of usage:
|
|
* Example 1:
|
|
* <pre>
|
|
* \code
|
|
* UChar *result, *tzID, *str;
|
|
* UChar pattern[100];
|
|
* int32_t resultLengthOut, resultlength;
|
|
* UCalendar *cal;
|
|
* UDate d1;
|
|
* UDateFormat *def1;
|
|
* UErrorCode status = U_ZERO_ERROR;
|
|
*
|
|
* str=(UChar*)malloc(sizeof(UChar) * (strlen("disturbance in force") +1));
|
|
* u_uastrcpy(str, "disturbance in force");
|
|
* tzID=(UChar*)malloc(sizeof(UChar) * 4);
|
|
* u_uastrcpy(tzID, "PST");
|
|
* cal=ucal_open(tzID, u_strlen(tzID), "en_US", UCAL_TRADITIONAL, &status);
|
|
* ucal_setDateTime(cal, 1999, UCAL_MARCH, 18, 0, 0, 0, &status);
|
|
* d1=ucal_getMillis(cal, &status);
|
|
* u_uastrcpy(pattern, "On {0, date, long}, there was a {1} on planet {2,number,integer}");
|
|
* resultlength=0;
|
|
* resultLengthOut=u_formatMessage( "en_US", pattern, u_strlen(pattern), NULL, resultlength, &status, d1, str, 7);
|
|
* if(status==U_BUFFER_OVERFLOW_ERROR){
|
|
* status=U_ZERO_ERROR;
|
|
* resultlength=resultLengthOut+1;
|
|
* result=(UChar*)realloc(result, sizeof(UChar) * resultlength);
|
|
* u_formatMessage( "en_US", pattern, u_strlen(pattern), result, resultlength, &status, d1, str, 7);
|
|
* }
|
|
* printf("%s\n", austrdup(result) );//austrdup( a function used to convert UChar* to char*)
|
|
* //output>: "On March 18, 1999, there was a disturbance in force on planet 7
|
|
* \endcode
|
|
* </pre>
|
|
* Typically, the message format will come from resources, and the
|
|
* arguments will be dynamically set at runtime.
|
|
* <P>
|
|
* Example 2:
|
|
* <pre>
|
|
* \code
|
|
* UChar* str;
|
|
* UErrorCode status = U_ZERO_ERROR;
|
|
* UChar *result;
|
|
* UChar pattern[100];
|
|
* int32_t resultlength, resultLengthOut, i;
|
|
* double testArgs= { 100.0, 1.0, 0.0};
|
|
*
|
|
* str=(UChar*)malloc(sizeof(UChar) * 10);
|
|
* u_uastrcpy(str, "MyDisk");
|
|
* u_uastrcpy(pattern, "The disk {1} contains {0,choice,0#no files|1#one file|1<{0,number,integer} files}");
|
|
* for(i=0; i<3; i++){
|
|
* resultlength=0;
|
|
* resultLengthOut=u_formatMessage( "en_US", pattern, u_strlen(pattern), NULL, resultlength, &status, testArgs[i], str);
|
|
* if(status==U_BUFFER_OVERFLOW_ERROR){
|
|
* status=U_ZERO_ERROR;
|
|
* resultlength=resultLengthOut+1;
|
|
* result=(UChar*)malloc(sizeof(UChar) * resultlength);
|
|
* u_formatMessage( "en_US", pattern, u_strlen(pattern), result, resultlength, &status, testArgs[i], str);
|
|
* }
|
|
* printf("%s\n", austrdup(result) ); //austrdup( a function used to convert UChar* to char*)
|
|
* free(result);
|
|
* }
|
|
* // output, with different testArgs:
|
|
* // output: The disk "MyDisk" contains 100 files.
|
|
* // output: The disk "MyDisk" contains one file.
|
|
* // output: The disk "MyDisk" contains no files.
|
|
* \endcode
|
|
* </pre>
|
|
*
|
|
* The pattern is of the following form. Legend:
|
|
* <pre>
|
|
* \code
|
|
* {optional item}
|
|
* (group that may be repeated)*
|
|
* \endcode
|
|
* </pre>
|
|
* Do not confuse optional items with items inside quotes braces, such
|
|
* as this: "{". Quoted braces are literals.
|
|
* <pre>
|
|
* \code
|
|
* messageFormatPattern := string ( "{" messageFormatElement "}" string )*
|
|
*
|
|
* messageFormatElement := argument { "," elementFormat }
|
|
*
|
|
* elementFormat := "time" { "," datetimeStyle }
|
|
* | "date" { "," datetimeStyle }
|
|
* | "number" { "," numberStyle }
|
|
* | "choice" "," choiceStyle
|
|
*
|
|
* datetimeStyle := "short"
|
|
* | "medium"
|
|
* | "long"
|
|
* | "full"
|
|
* | dateFormatPattern
|
|
*
|
|
* numberStyle := "currency"
|
|
* | "percent"
|
|
* | "integer"
|
|
* | numberFormatPattern
|
|
*
|
|
* choiceStyle := choiceFormatPattern
|
|
* \endcode
|
|
* </pre>
|
|
* If there is no elementFormat, then the argument must be a string,
|
|
* which is substituted. If there is no dateTimeStyle or numberStyle,
|
|
* then the default format is used (e.g. NumberFormat.getInstance(),
|
|
* DateFormat.getDefaultTime() or DateFormat.getDefaultDate(). For
|
|
* a ChoiceFormat, the pattern must always be specified, since there
|
|
* is no default.
|
|
* <P>
|
|
* In strings, single quotes can be used to quote the "{" sign if
|
|
* necessary. A real single quote is represented by ''. Inside a
|
|
* messageFormatElement, quotes are [not] removed. For example,
|
|
* {1,number,$'#',##} will produce a number format with the pound-sign
|
|
* quoted, with a result such as: "$#31,45".
|
|
* <P>
|
|
* If a pattern is used, then unquoted braces in the pattern, if any,
|
|
* must match: that is, "ab {0} de" and "ab '}' de" are ok, but "ab
|
|
* {0'}' de" and "ab } de" are not.
|
|
* <P>
|
|
* The argument is a number from 0 to 9, which corresponds to the
|
|
* arguments presented in an array to be formatted.
|
|
* <P>
|
|
* It is ok to have unused arguments in the array. With missing
|
|
* arguments or arguments that are not of the right class for the
|
|
* specified format, a failing UErrorCode result is set.
|
|
* <P>
|
|
|
|
* <P>
|
|
* [Note:] As we see above, the string produced by a choice Format in
|
|
* MessageFormat is treated specially; occurances of '{' are used to
|
|
* indicated subformats.
|
|
* <P>
|
|
* [Note:] Formats are numbered by order of variable in the string.
|
|
* This is [not] the same as the argument numbering!
|
|
* <pre>
|
|
* \code
|
|
* For example: with "abc{2}def{3}ghi{0}...",
|
|
*
|
|
* format0 affects the first variable {2}
|
|
* format1 affects the second variable {3}
|
|
* format2 affects the second variable {0}
|
|
* \endcode
|
|
* </pre>
|
|
* and so on.
|
|
*/
|
|
|
|
/**
|
|
* Format a message for a locale.
|
|
* This function may perform re-ordering of the arguments depending on the
|
|
* locale. For all numeric arguments, double is assumed unless the type is
|
|
* explicitly integer. All choice format arguments must be of type double.
|
|
* @param locale The locale for which the message will be formatted
|
|
* @param pattern The pattern specifying the message's format
|
|
* @param patternLength The length of pattern
|
|
* @param result A pointer to a buffer to receive the formatted message.
|
|
* @param resultLength The maximum size of result.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @param ... A variable-length argument list containing the arguments specified
|
|
* in pattern.
|
|
* @return The total buffer size needed; if greater than resultLength, the
|
|
* output was truncated.
|
|
* @see u_parseMessage
|
|
* @stable
|
|
*/
|
|
U_CAPI int32_t U_EXPORT2
|
|
u_formatMessage(const char *locale,
|
|
const UChar *pattern,
|
|
int32_t patternLength,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
UErrorCode *status,
|
|
...);
|
|
|
|
/**
|
|
* Format a message for a locale.
|
|
* This function may perform re-ordering of the arguments depending on the
|
|
* locale. For all numeric arguments, double is assumed unless the type is
|
|
* explicitly integer. All choice format arguments must be of type double.
|
|
* @param locale The locale for which the message will be formatted
|
|
* @param pattern The pattern specifying the message's format
|
|
* @param patternLength The length of pattern
|
|
* @param result A pointer to a buffer to receive the formatted message.
|
|
* @param resultLength The maximum size of result.
|
|
* @param ap A variable-length argument list containing the arguments specified
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* in pattern.
|
|
* @return The total buffer size needed; if greater than resultLength, the
|
|
* output was truncated.
|
|
* @see u_parseMessage
|
|
*/
|
|
U_CAPI int32_t U_EXPORT2
|
|
u_vformatMessage( const char *locale,
|
|
const UChar *pattern,
|
|
int32_t patternLength,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
va_list ap,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Parse a message.
|
|
* For numeric arguments, this function will always use doubles. Integer types
|
|
* should not be passed.
|
|
* This function is not able to parse all output from \Ref{u_formatMessage}.
|
|
* @param locale The locale for which the message is formatted
|
|
* @param pattern The pattern specifying the message's format
|
|
* @param patternLength The length of pattern
|
|
* @param source The text to parse.
|
|
* @param sourceLength The length of source, or -1 if null-terminated.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @param ... A variable-length argument list containing the arguments
|
|
* specified in pattern.
|
|
* @see u_formatMessage
|
|
* @stable
|
|
*/
|
|
U_CAPI void U_EXPORT2
|
|
u_parseMessage( const char *locale,
|
|
const UChar *pattern,
|
|
int32_t patternLength,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
UErrorCode *status,
|
|
...);
|
|
|
|
/**
|
|
* Parse a message.
|
|
* For numeric arguments, this function will always use doubles. Integer types
|
|
* should not be passed.
|
|
* This function is not able to parse all output from \Ref{u_formatMessage}.
|
|
* @param locale The locale for which the message is formatted
|
|
* @param pattern The pattern specifying the message's format
|
|
* @param patternLength The length of pattern
|
|
* @param source The text to parse.
|
|
* @param sourceLength The length of source, or -1 if null-terminated.
|
|
* @param ap A variable-length argument list containing the arguments
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* specified in pattern.
|
|
* @see u_formatMessage
|
|
*/
|
|
U_CAPI void U_EXPORT2
|
|
u_vparseMessage(const char *locale,
|
|
const UChar *pattern,
|
|
int32_t patternLength,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
va_list ap,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Format a message for a locale.
|
|
* This function may perform re-ordering of the arguments depending on the
|
|
* locale. For all numeric arguments, double is assumed unless the type is
|
|
* explicitly integer. All choice format arguments must be of type double.
|
|
* @param locale The locale for which the message will be formatted
|
|
* @param pattern The pattern specifying the message's format
|
|
* @param patternLength The length of pattern
|
|
* @param result A pointer to a buffer to receive the formatted message.
|
|
* @param resultLength The maximum size of result.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @param ... A variable-length argument list containing the arguments specified
|
|
* in pattern.
|
|
* @param parseError A pointer to UParseError to receive information about errors
|
|
* occurred during parsing.
|
|
* @return The total buffer size needed; if greater than resultLength, the
|
|
* output was truncated.
|
|
* @see u_parseMessage
|
|
* @draft ICU 2.0
|
|
*/
|
|
U_CAPI int32_t U_EXPORT2
|
|
u_formatMessageWithError( const char *locale,
|
|
const UChar *pattern,
|
|
int32_t patternLength,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
UParseError *parseError,
|
|
UErrorCode *status,
|
|
...);
|
|
|
|
/**
|
|
* Format a message for a locale.
|
|
* This function may perform re-ordering of the arguments depending on the
|
|
* locale. For all numeric arguments, double is assumed unless the type is
|
|
* explicitly integer. All choice format arguments must be of type double.
|
|
* @param locale The locale for which the message will be formatted
|
|
* @param pattern The pattern specifying the message's format
|
|
* @param patternLength The length of pattern
|
|
* @param result A pointer to a buffer to receive the formatted message.
|
|
* @param resultLength The maximum size of result.
|
|
* @param parseError A pointer to UParseError to receive information about errors
|
|
* occurred during parsing.
|
|
* @param ap A variable-length argument list containing the arguments specified
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* in pattern.
|
|
* @return The total buffer size needed; if greater than resultLength, the
|
|
* output was truncated.
|
|
*/
|
|
U_CAPI int32_t U_EXPORT2
|
|
u_vformatMessageWithError( const char *locale,
|
|
const UChar *pattern,
|
|
int32_t patternLength,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
UParseError* parseError,
|
|
va_list ap,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Parse a message.
|
|
* For numeric arguments, this function will always use doubles. Integer types
|
|
* should not be passed.
|
|
* This function is not able to parse all output from \Ref{u_formatMessage}.
|
|
* @param locale The locale for which the message is formatted
|
|
* @param pattern The pattern specifying the message's format
|
|
* @param patternLength The length of pattern
|
|
* @param source The text to parse.
|
|
* @param sourceLength The length of source, or -1 if null-terminated.
|
|
* @param parseError A pointer to UParseError to receive information about errors
|
|
* occurred during parsing.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @param ... A variable-length argument list containing the arguments
|
|
* specified in pattern.
|
|
* @see u_formatMessage
|
|
* @draft ICU 2.0
|
|
*/
|
|
U_CAPI void U_EXPORT2
|
|
u_parseMessageWithError(const char *locale,
|
|
const UChar *pattern,
|
|
int32_t patternLength,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
UParseError *error,
|
|
UErrorCode *status,
|
|
...);
|
|
|
|
/**
|
|
* Parse a message.
|
|
* For numeric arguments, this function will always use doubles. Integer types
|
|
* should not be passed.
|
|
* This function is not able to parse all output from \Ref{u_formatMessage}.
|
|
* @param locale The locale for which the message is formatted
|
|
* @param pattern The pattern specifying the message's format
|
|
* @param patternLength The length of pattern
|
|
* @param source The text to parse.
|
|
* @param sourceLength The length of source, or -1 if null-terminated.
|
|
* @param ap A variable-length argument list containing the arguments
|
|
* @param parseError A pointer to UParseError to receive information about errors
|
|
* occurred during parsing.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* specified in pattern.
|
|
* @see u_formatMessage
|
|
* @draft ICU 2.0
|
|
*/
|
|
U_CAPI void U_EXPORT2
|
|
u_vparseMessageWithError(const char *locale,
|
|
const UChar *pattern,
|
|
int32_t patternLength,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
va_list ap,
|
|
UParseError *error,
|
|
UErrorCode* status);
|
|
|
|
/*----------------------- New experimental API --------------------------- */
|
|
|
|
typedef void* UMessageFormat;
|
|
|
|
|
|
/**
|
|
* Open a message formatter with given pattern and for the given locale.
|
|
* @param pattern A pattern specifying the format to use.
|
|
* @param patternLength Length of the pattern to use
|
|
* @param locale The locale for which the messages are formatted.
|
|
* @param parseError A pointer to UParseError struct to receive any errors
|
|
* occured during parsing. Can be NULL.
|
|
* @param status A pointer to an UErrorCode to receive any errors.
|
|
* @return A pointer to a UMessageFormat to use for formatting
|
|
* messages, or 0 if an error occurred.
|
|
* @draft ICU 2.0
|
|
*/
|
|
U_CAPI UMessageFormat* U_EXPORT2
|
|
umsg_open( const UChar *pattern,
|
|
int32_t patternLength,
|
|
const char *locale,
|
|
UParseError *parseError,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Close a UMessageFormat.
|
|
* Once closed, a UMessageFormat may no longer be used.
|
|
* @param format The formatter to close.
|
|
* @stable
|
|
*/
|
|
U_CAPI void U_EXPORT2
|
|
umsg_close(UMessageFormat* format);
|
|
|
|
/**
|
|
* Open a copy of a UMessageFormat.
|
|
* This function performs a deep copy.
|
|
* @param fmt The formatter to copy
|
|
* @param status A pointer to an UErrorCode to receive any errors.
|
|
* @return A pointer to a UDateFormat identical to fmt.
|
|
* @stable
|
|
*/
|
|
U_CAPI UMessageFormat U_EXPORT2
|
|
umsg_clone(const UMessageFormat *fmt,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Sets the locale. This locale is used for fetching default number or date
|
|
* format information.
|
|
* @param fmt The formatter to set
|
|
* @param locale The locale the formatter should use.
|
|
*/
|
|
U_CAPI void U_EXPORT2
|
|
umsg_setLocale(UMessageFormat *fmt,
|
|
const char* locale);
|
|
|
|
/**
|
|
* Gets the locale. This locale is used for fetching default number or date
|
|
* format information.
|
|
* @param fmt The formatter to querry
|
|
* @return the locale.
|
|
* @stable
|
|
*/
|
|
U_CAPI const char* U_EXPORT2
|
|
umsg_getLocale(UMessageFormat *fmt);
|
|
|
|
/**
|
|
* Sets the pattern.
|
|
* @param fmt The formatter to use
|
|
* @param pattern The pattern to be applied.
|
|
* @param patternLength Length of the pattern to use
|
|
* @param parseError Struct to receive information on position
|
|
* of error if an error is encountered.Can be NULL.
|
|
* @param status Output param set to success/failure code on
|
|
* exit. If the pattern is invalid, this will be
|
|
* set to a failure result.
|
|
* @draft
|
|
*/
|
|
U_CAPI void U_EXPORT2
|
|
umsg_applyPattern( UMessageFormat *fmt,
|
|
const UChar* pattern,
|
|
int32_t patternLength,
|
|
UParseError* parseError,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Gets the pattern.
|
|
* @param fmt The formatter to use
|
|
* @param result A pointer to a buffer to receive the pattern.
|
|
* @param resultLength The maximum size of result.
|
|
* @param status Output param set to success/failure code on
|
|
* exit. If the pattern is invalid, this will be
|
|
* set to a failure result.
|
|
* @return the pattern of the format
|
|
* @draft
|
|
*/
|
|
U_CAPI int32_t U_EXPORT2
|
|
umsg_toPattern(UMessageFormat *fmt,
|
|
UChar* result,
|
|
int32_t resultLength,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Format a message for a locale.
|
|
* This function may perform re-ordering of the arguments depending on the
|
|
* locale. For all numeric arguments, double is assumed unless the type is
|
|
* explicitly integer. All choice format arguments must be of type double.
|
|
* @param fmt The formatter to use
|
|
* @param result A pointer to a buffer to receive the formatted message.
|
|
* @param resultLength The maximum size of result.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @param ... A variable-length argument list containing the arguments
|
|
* specified in pattern.
|
|
* @return The total buffer size needed; if greater than resultLength,
|
|
* the output was truncated.
|
|
* @stable
|
|
*/
|
|
U_CAPI int32_t U_EXPORT2
|
|
umsg_format( UMessageFormat *fmt,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
UErrorCode *status,
|
|
...);
|
|
|
|
/**
|
|
* Format a message for a locale.
|
|
* This function may perform re-ordering of the arguments depending on the
|
|
* locale. For all numeric arguments, double is assumed unless the type is
|
|
* explicitly integer. All choice format arguments must be of type double.
|
|
* @param fmt The formatter to use
|
|
* @param result A pointer to a buffer to receive the formatted message.
|
|
* @param resultLength The maximum size of result.
|
|
* @param ap A variable-length argument list containing the arguments
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* specified in pattern.
|
|
* @return The total buffer size needed; if greater than resultLength,
|
|
* the output was truncated.
|
|
*/
|
|
U_CAPI int32_t U_EXPORT2
|
|
umsg_vformat( UMessageFormat *fmt,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
va_list ap,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Parse a message.
|
|
* For numeric arguments, this function will always use doubles. Integer types
|
|
* should not be passed.
|
|
* This function is not able to parse all output from \Ref{umsg_format}.
|
|
* @param fmt The formatter to use
|
|
* @param source The text to parse.
|
|
* @param sourceLength The length of source, or -1 if null-terminated.
|
|
* @param count Output param to receive number of elements returned.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @param ... A variable-length argument list containing the arguments
|
|
* specified in pattern.
|
|
* @stable
|
|
*/
|
|
U_CAPI void U_EXPORT2
|
|
umsg_parse( UMessageFormat *fmt,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
int32_t *count,
|
|
UErrorCode *status,
|
|
...);
|
|
|
|
/**
|
|
* Parse a message.
|
|
* For numeric arguments, this function will always use doubles. Integer types
|
|
* should not be passed.
|
|
* This function is not able to parse all output from \Ref{umsg_format}.
|
|
* @param fmt The formatter to use
|
|
* @param source The text to parse.
|
|
* @param sourceLength The length of source, or -1 if null-terminated.
|
|
* @param count Output param to receive number of elements returned.
|
|
* @param ap A variable-length argument list containing the arguments
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* specified in pattern.
|
|
* @see u_formatMessage
|
|
*/
|
|
U_CAPI void U_EXPORT2
|
|
umsg_vparse(UMessageFormat *fmt,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
int32_t *count,
|
|
va_list ap,
|
|
UErrorCode *status);
|
|
#endif
|