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模块:String (查看源代码)

2020年8月2日 (日) 23:49的版本

删除1,112字节 、 2020年8月2日 (日) 23:49
separate annotations for str.match from those for str._match
第1行： 第1行： −
--[[
+
--[[
    
This module is intended to provide access to basic string functions.
 
This module is intended to provide access to basic string functions.
   −
Most of the functions provided here can be invoked with named parameters,  
+
Most of the functions provided here can be invoked with named parameters,
−
unnamed parameters, or a mixture.  If named parameters are used, Mediawiki will  
+
unnamed parameters, or a mixture.  If named parameters are used, Mediawiki will
−
automatically remove any leading or trailing whitespace from the parameter.
+
automatically remove any leading or trailing whitespace from the parameter.
 
Depending on the intended use, it may be advantageous to either preserve or
 
Depending on the intended use, it may be advantageous to either preserve or
 
remove such whitespace.
 
remove such whitespace.
    
Global options
 
Global options
−
     ignore_errors: If set to 'true' or 1, any error condition will result in  
+
     ignore_errors: If set to 'true' or 1, any error condition will result in
−
         an empty string being returned rather than an error message.
+
         an empty string being returned rather than an error message.
−
       
+
 
−
     error_category: If an error occurs, specifies the name of a category to  
+
     error_category: If an error occurs, specifies the name of a category to
−
         include with the error message.  The default category is
+
         include with the error message.  The default category is
 
         [Category:Errors reported by Module String].
 
         [Category:Errors reported by Module String].
−
       
+
 
 
     no_category: If set to 'true' or 1, no category will be added if an error
 
     no_category: If set to 'true' or 1, no category will be added if an error
 
         is generated.
 
         is generated.
−
       
+
 
 
Unit tests for this module are available at Module:String/tests.
 
Unit tests for this module are available at Module:String/tests.
 
]]
 
]]
第39行： 第39行：     
If invoked using named parameters, Mediawiki will automatically remove any leading or
 
If invoked using named parameters, Mediawiki will automatically remove any leading or
−
trailing whitespace from the target string.
+
trailing whitespace from the target string.
 
]]
 
]]
 
function str.len( frame )
 
function str.len( frame )
−
    local new_args = str._getParameters( frame.args, {'s'} );
+
local new_args = str._getParameters( frame.args, {'s'} )
−
    local s = new_args['s'] or '';
+
local s = new_args['s'] or ''
−
    return mw.ustring.len( s )
+
return mw.ustring.len( s )
 
end
 
end
   第61行： 第61行：  
     i: The fist index of the substring to return, defaults to 1.
 
     i: The fist index of the substring to return, defaults to 1.
 
     j: The last index of the string to return, defaults to the last character.
 
     j: The last index of the string to return, defaults to the last character.
−
   
+
 
 
The first character of the string is assigned an index of 1.  If either i or j
 
The first character of the string is assigned an index of 1.  If either i or j
−
is a negative value, it is interpreted the same as selecting a character by  
+
is a negative value, it is interpreted the same as selecting a character by
−
counting from the end of the string.  Hence, a value of -1 is the same as  
+
counting from the end of the string.  Hence, a value of -1 is the same as
 
selecting the last character of the string.
 
selecting the last character of the string.
   −
If the requested indices are out of range for the given string, an error is  
+
If the requested indices are out of range for the given string, an error is
 
reported.
 
reported.
 
]]
 
]]
 
function str.sub( frame )
 
function str.sub( frame )
−
    local new_args = str._getParameters( frame.args, { 's', 'i', 'j' } );
+
local new_args = str._getParameters( frame.args, { 's', 'i', 'j' } )
−
    local s = new_args['s'] or '';
+
local s = new_args['s'] or ''
−
    local i = tonumber( new_args['i'] ) or 1;
+
local i = tonumber( new_args['i'] ) or 1
−
    local j = tonumber( new_args['j'] ) or -1;
+
local j = tonumber( new_args['j'] ) or -1
−
   
+
 
−
    local len = mw.ustring.len( s );
+
local len = mw.ustring.len( s )
   −
    -- Convert negatives for range checking
+
-- Convert negatives for range checking
−
    if i < 0 then
+
if i < 0 then
−
        i = len + i + 1;
+
i = len + i + 1
−
    end
+
end
−
    if j < 0 then
+
if j < 0 then
−
        j = len + j + 1;
+
j = len + j + 1
−
    end
+
end
−
   
+
 
−
    if i > len or j > len or i < 1 or j < 1 then
+
if i > len or j > len or i < 1 or j < 1 then
−
        return str._error( '截取字符串索引脱离区间' );
+
return str._error( 'String subset index out of range' )
−
    end
+
end
−
    if j < i then
+
if j < i then
−
        return str._error( '截取字符串指示脱离顺序' );
+
return str._error( 'String subset indices out of order' )
−
    end
+
end
−
   
+
 
−
    return mw.ustring.sub( s, i, j )
+
return mw.ustring.sub( s, i, j )
 
end
 
end
   第101行： 第101行：  
]]
 
]]
 
function str.sublength( frame )
 
function str.sublength( frame )
−
    local i = tonumber( frame.args.i ) or 0
+
local i = tonumber( frame.args.i ) or 0
−
    local len = tonumber( frame.args.len )
+
local len = tonumber( frame.args.len )
−
    return mw.ustring.sub( frame.args.s, i + 1, len and ( i + len ) )
+
return mw.ustring.sub( frame.args.s, i + 1, len and ( i + len ) )
 +
end
 +
 
 +
--[[
 +
_match
 +
 
 +
This function returns a substring from the source string that matches a
 +
specified pattern. It is exported for use in other modules
 +
 
 +
Usage:
 +
strmatch = require("Module:String")._match
 +
sresult = strmatch( s, pattern, start, match, plain, nomatch )
 +
 
 +
Parameters
 +
    s: The string to search
 +
    pattern: The pattern or string to find within the string
 +
    start: The index within the source string to start the search.  The first
 +
        character of the string has index 1.  Defaults to 1.
 +
    match: In some cases it may be possible to make multiple matches on a single
 +
        string.  This specifies which match to return, where the first match is
 +
        match= 1.  If a negative number is specified then a match is returned
 +
        counting from the last match.  Hence match = -1 is the same as requesting
 +
        the last match.  Defaults to 1.
 +
    plain: A flag indicating that the pattern should be understood as plain
 +
        text.  Defaults to false.
 +
    nomatch: If no match is found, output the "nomatch" value rather than an error.
 +
 
 +
For information on constructing Lua patterns, a form of [regular expression], see:
 +
 
 +
* http://www.lua.org/manual/5.1/manual.html#5.4.1
 +
* http://www.mediawiki.org/wiki/Extension:Scribunto/Lua_reference_manual#Patterns
 +
* http://www.mediawiki.org/wiki/Extension:Scribunto/Lua_reference_manual#Ustring_patterns
 +
 
 +
]]
 +
-- This sub-routine is exported for use in other modules
 +
function str._match( s, pattern, start, match_index, plain_flag, nomatch )
 +
if s == '' then
 +
return str._error( 'Target string is empty' )
 +
end
 +
if pattern == '' then
 +
return str._error( 'Pattern string is empty' )
 +
end
 +
start = tonumber(start) or 1
 +
if math.abs(start) < 1 or math.abs(start) > mw.ustring.len( s ) then
 +
return str._error( 'Requested start is out of range' )
 +
end
 +
if match_index == 0 then
 +
return str._error( 'Match index is out of range' )
 +
end
 +
if plain_flag then
 +
pattern = str._escapePattern( pattern )
 +
end
 +
 
 +
local result
 +
if match_index == 1 then
 +
-- Find first match is simple case
 +
result = mw.ustring.match( s, pattern, start )
 +
else
 +
if start > 1 then
 +
s = mw.ustring.sub( s, start )
 +
end
 +
 
 +
local iterator = mw.ustring.gmatch(s, pattern)
 +
if match_index > 0 then
 +
-- Forward search
 +
for w in iterator do
 +
match_index = match_index - 1
 +
if match_index == 0 then
 +
result = w
 +
break
 +
end
 +
end
 +
else
 +
-- Reverse search
 +
local result_table = {}
 +
local count = 1
 +
for w in iterator do
 +
result_table[count] = w
 +
count = count + 1
 +
end
 +
 
 +
result = result_table[ count + match_index ]
 +
end
 +
end
 +
 
 +
if result == nil then
 +
if nomatch == nil then
 +
return str._error( 'Match not found' )
 +
else
 +
return nomatch
 +
end
 +
else
 +
return result
 +
end
 
end
 
end
   第109行： 第202行：  
match
 
match
   −
This function returns a substring from the source string that matches a  
+
This function returns a substring from the source string that matches a
 
specified pattern.
 
specified pattern.
   第115行： 第208行：  
{{#invoke:String|match|source_string|pattern_string|start_index|match_number|plain_flag|nomatch_output}}
 
{{#invoke:String|match|source_string|pattern_string|start_index|match_number|plain_flag|nomatch_output}}
 
OR
 
OR
−
{{#invoke:String|pos|s=source_string|pattern=pattern_string|start=start_index
+
{{#invoke:String|match|s=source_string|pattern=pattern_string|start=start_index
 
     |match=match_number|plain=plain_flag|nomatch=nomatch_output}}
 
     |match=match_number|plain=plain_flag|nomatch=nomatch_output}}
   第123行： 第216行：  
     start: The index within the source string to start the search.  The first
 
     start: The index within the source string to start the search.  The first
 
         character of the string has index 1.  Defaults to 1.
 
         character of the string has index 1.  Defaults to 1.
−
     match: In some cases it may be possible to make multiple matches on a single  
+
     match: In some cases it may be possible to make multiple matches on a single
−
         string.  This specifies which match to return, where the first match is  
+
         string.  This specifies which match to return, where the first match is
−
         match= 1.  If a negative number is specified then a match is returned  
+
         match= 1.  If a negative number is specified then a match is returned
 
         counting from the last match.  Hence match = -1 is the same as requesting
 
         counting from the last match.  Hence match = -1 is the same as requesting
 
         the last match.  Defaults to 1.
 
         the last match.  Defaults to 1.
第133行： 第226行：     
If invoked using named parameters, Mediawiki will automatically remove any leading or
 
If invoked using named parameters, Mediawiki will automatically remove any leading or
−
trailing whitespace from each string.  In some circumstances this is desirable, in  
+
trailing whitespace from each string.  In some circumstances this is desirable, in
 
other cases one may want to preserve the whitespace.
 
other cases one may want to preserve the whitespace.
    
If the match_number or start_index are out of range for the string being queried, then
 
If the match_number or start_index are out of range for the string being queried, then
 
this function generates an error.  An error is also generated if no match is found.
 
this function generates an error.  An error is also generated if no match is found.
−
If one adds the parameter ignore_errors=true, then the error will be suppressed and  
+
If one adds the parameter ignore_errors=true, then the error will be suppressed and
 
an empty string will be returned on any failure.
 
an empty string will be returned on any failure.
   第148行： 第241行：     
]]
 
]]
 +
-- This is the entry point for #invoke:String|match
 
function str.match( frame )
 
function str.match( frame )
−
    local new_args = str._getParameters( frame.args, {'s', 'pattern', 'start', 'match', 'plain', 'nomatch'} );
+
local new_args = str._getParameters( frame.args, {'s', 'pattern', 'start', 'match', 'plain', 'nomatch'} )
−
    local s = new_args['s'] or '';
+
local s = new_args['s'] or ''
−
    local start = tonumber( new_args['start'] ) or 1;
+
local start = tonumber( new_args['start'] ) or 1
−
    local plain_flag = str._getBoolean( new_args['plain'] or false );
+
local plain_flag = str._getBoolean( new_args['plain'] or false )
−
    local pattern = new_args['pattern'] or '';
+
local pattern = new_args['pattern'] or ''
−
    local match_index = math.floor( tonumber(new_args['match']) or 1 );
+
local match_index = math.floor( tonumber(new_args['match']) or 1 )
−
    local nomatch = new_args['nomatch'];
+
local nomatch = new_args['nomatch']
−
   
+
 
−
    if s == '' then
+
return str._match( s, pattern, start, match_index, plain_flag, nomatch )
−
        return str._error( '目标字符串是空的' );
  −
    end
  −
    if pattern == '' then
  −
        return str._error( '模式字符串是空的' );
  −
    end
  −
    if math.abs(start) < 1 or math.abs(start) > mw.ustring.len( s ) then
  −
        return str._error( '要求的起始点脱离区间' );
  −
    end
  −
    if match_index == 0 then
  −
        return str._error( '匹配索引脱离区间' );
  −
    end
  −
    if plain_flag then
  −
        pattern = str._escapePattern( pattern );
  −
    end
  −
   
  −
    local result
  −
    if match_index == 1 then
  −
        -- Find first match is simple case
  −
        result = mw.ustring.match( s, pattern, start )
  −
    else
  −
        if start > 1 then
  −
            s = mw.ustring.sub( s, start );
  −
        end
  −
       
  −
        local iterator = mw.ustring.gmatch(s, pattern);
  −
        if match_index > 0 then
  −
            -- Forward search
  −
            for w in iterator do
  −
                match_index = match_index - 1;
  −
                if match_index == 0 then
  −
                    result = w;
  −
                    break;
  −
                end
  −
            end   
  −
        else
  −
            -- Reverse search
  −
            local result_table = {};
  −
            local count = 1;
  −
            for w in iterator do
  −
                result_table[count] = w;
  −
                count = count + 1;
  −
            end
  −
           
  −
            result = result_table[ count + match_index ];           
  −
        end
  −
    end       
  −
   
  −
    if result == nil then
  −
        if nomatch == nil then
  −
            return str._error( '找不到匹配' );
  −
        else
  −
            return nomatch;
  −
        end
  −
    else
  −
        return result;
  −
    end
   
end
 
end
   第231行： 第269行：     
If invoked using named parameters, Mediawiki will automatically remove any leading or
 
If invoked using named parameters, Mediawiki will automatically remove any leading or
−
trailing whitespace from the target string.  In some circumstances this is desirable, in  
+
trailing whitespace from the target string.  In some circumstances this is desirable, in
 
other cases one may want to preserve the whitespace.
 
other cases one may want to preserve the whitespace.
    
The first character has an index value of 1.
 
The first character has an index value of 1.
   −
If one requests a negative value, this function will select a character by counting backwards  
+
If one requests a negative value, this function will select a character by counting backwards
 
from the end of the string.  In other words pos = -1 is the same as asking for the last character.
 
from the end of the string.  In other words pos = -1 is the same as asking for the last character.
   第242行： 第280行：  
]]
 
]]
 
function str.pos( frame )
 
function str.pos( frame )
−
    local new_args = str._getParameters( frame.args, {'target', 'pos'} );
+
local new_args = str._getParameters( frame.args, {'target', 'pos'} )
−
    local target_str = new_args['target'] or '';
+
local target_str = new_args['target'] or ''
−
    local pos = tonumber( new_args['pos'] ) or 0;
+
local pos = tonumber( new_args['pos'] ) or 0
 +
 
 +
if pos == 0 or math.abs(pos) > mw.ustring.len( target_str ) then
 +
return str._error( 'String index out of range' )
 +
end
   −
    if pos == 0 or math.abs(pos) > mw.ustring.len( target_str ) then
+
return mw.ustring.sub( target_str, pos, pos )
−
        return str._error( '字符串索引脱离区间' );
  −
    end   
  −
   
  −
    return mw.ustring.sub( target_str, pos, pos );
   
end
 
end
   第257行： 第295行：     
This function duplicates the behavior of {{str_find}}, including all of its quirks.
 
This function duplicates the behavior of {{str_find}}, including all of its quirks.
−
This is provided in order to support existing templates, but is NOT RECOMMENDED for  
+
This is provided in order to support existing templates, but is NOT RECOMMENDED for
 
new code and templates.  New code is recommended to use the "find" function instead.
 
new code and templates.  New code is recommended to use the "find" function instead.
   第268行： 第306行：  
]]
 
]]
 
function str.str_find( frame )
 
function str.str_find( frame )
−
    local new_args = str._getParameters( frame.args, {'source', 'target'} );
+
local new_args = str._getParameters( frame.args, {'source', 'target'} )
−
    local source_str = new_args['source'] or '';
+
local source_str = new_args['source'] or ''
−
    local target_str = new_args['target'] or '';
+
local target_str = new_args['target'] or ''
 +
 
 +
if target_str == '' then
 +
return 1
 +
end
 +
 
 +
local start = mw.ustring.find( source_str, target_str, 1, true )
 +
if start == nil then
 +
start = -1
 +
end
   −
    if target_str == '' then
+
return start
−
        return 1;
  −
    end   
  −
   
  −
    local start = mw.ustring.find( source_str, target_str, 1, true )
  −
    if start == nil then
  −
        start = -1
  −
    end
  −
   
  −
    return start
   
end
 
end
   第303行： 第341行：     
If invoked using named parameters, Mediawiki will automatically remove any leading or
 
If invoked using named parameters, Mediawiki will automatically remove any leading or
−
trailing whitespace from the parameter.  In some circumstances this is desirable, in  
+
trailing whitespace from the parameter.  In some circumstances this is desirable, in
 
other cases one may want to preserve the whitespace.
 
other cases one may want to preserve the whitespace.
   −
This function returns the first index >= "start" where "target" can be found  
+
This function returns the first index >= "start" where "target" can be found
−
within "source".  Indices are 1-based.  If "target" is not found, then this  
+
within "source".  Indices are 1-based.  If "target" is not found, then this
 
function returns 0.  If either "source" or "target" are missing / empty, this
 
function returns 0.  If either "source" or "target" are missing / empty, this
 
function also returns 0.
 
function also returns 0.
第314行： 第352行：  
]]
 
]]
 
function str.find( frame )
 
function str.find( frame )
−
    local new_args = str._getParameters( frame.args, {'source', 'target', 'start', 'plain' } );
+
local new_args = str._getParameters( frame.args, {'source', 'target', 'start', 'plain' } )
−
    local source_str = new_args['source'] or '';
+
local source_str = new_args['source'] or ''
−
    local pattern = new_args['target'] or '';
+
local pattern = new_args['target'] or ''
−
    local start_pos = tonumber(new_args['start']) or 1;
+
local start_pos = tonumber(new_args['start']) or 1
−
    local plain = new_args['plain'] or true;
+
local plain = new_args['plain'] or true
−
       
  −
    if source_str == '' or pattern == '' then
  −
        return 0;
  −
    end   
  −
   
  −
    plain = str._getBoolean( plain );
     −
    local start = mw.ustring.find( source_str, pattern, start_pos, plain )
+
if source_str == '' or pattern == '' then
−
    if start == nil then
+
return 0
−
        start = 0
+
end
−
    end
+
 
−
   
+
plain = str._getBoolean( plain )
−
    return start
+
 
 +
local start = mw.ustring.find( source_str, pattern, start_pos, plain )
 +
if start == nil then
 +
start = 0
 +
end
 +
 
 +
return start
 
end
 
end
   第352行： 第390行：  
     count: The number of occurences to replace, defaults to all.
 
     count: The number of occurences to replace, defaults to all.
 
     plain: Boolean flag indicating that pattern should be understood as plain
 
     plain: Boolean flag indicating that pattern should be understood as plain
−
         text and not as a Lua style regular expression, defaults to true  
+
         text and not as a Lua style regular expression, defaults to true
 
]]
 
]]
 
function str.replace( frame )
 
function str.replace( frame )
−
    local new_args = str._getParameters( frame.args, {'source', 'pattern', 'replace', 'count', 'plain' } );
+
local new_args = str._getParameters( frame.args, {'source', 'pattern', 'replace', 'count', 'plain' } )
−
    local source_str = new_args['source'] or '';
+
local source_str = new_args['source'] or ''
−
    local pattern = new_args['pattern'] or '';
+
local pattern = new_args['pattern'] or ''
−
    local replace = new_args['replace'] or '';
+
local replace = new_args['replace'] or ''
−
    local count = tonumber( new_args['count'] );
+
local count = tonumber( new_args['count'] )
−
    local plain = new_args['plain'] or true;
+
local plain = new_args['plain'] or true
−
       
  −
    if source_str == '' or pattern == '' then
  −
        return source_str;
  −
    end   
  −
    plain = str._getBoolean( plain );
     −
    if plain then
+
if source_str == '' or pattern == '' then
−
        pattern = str._escapePattern( pattern );
+
return source_str
−
        replace = mw.ustring.gsub( replace, "%%", "%%%%" ); --Only need to escape replacement sequences.
+
end
−
    end
+
plain = str._getBoolean( plain )
−
   
  −
    local result;
     −
    if count ~= nil then
+
if plain then
−
        result = mw.ustring.gsub( source_str, pattern, replace, count );
+
pattern = str._escapePattern( pattern )
−
    else
+
replace = mw.ustring.gsub( replace, "%%", "%%%%" ) --Only need to escape replacement sequences.
−
        result = mw.ustring.gsub( source_str, pattern, replace );
+
end
−
    end      
     −
    return result;
+
local result
 +
 
 +
if count ~= nil then
 +
result = mw.ustring.gsub( source_str, pattern, replace, count )
 +
else
 +
result = mw.ustring.gsub( source_str, pattern, replace )
 +
end
 +
 
 +
return result
 
end
 
end
   −
--[[  
+
--[[
 
     simple function to pipe string.rep to templates.
 
     simple function to pipe string.rep to templates.
 
]]
 
]]
−
   
function str.rep( frame )
 
function str.rep( frame )
−
    local repetitions = tonumber( frame.args[2] )
+
local repetitions = tonumber( frame.args[2] )
−
    if not repetitions then  
+
if not repetitions then
−
        return str._error( 'function rep expects a number as second parameter, received "' .. ( frame.args[2] or '' ) .. '"' )
+
return str._error( 'function rep expects a number as second parameter, received "' .. ( frame.args[2] or '' ) .. '"' )
−
    end
+
end
−
    return string.rep( frame.args[1] or '', repetitions )
+
return string.rep( frame.args[1] or '', repetitions )
 
end
 
end
    +
--[[
 +
escapePattern
 +
 +
This function escapes special characters from a Lua string pattern. See [1]
 +
for details on how patterns work.
 +
 +
[1] https://www.mediawiki.org/wiki/Extension:Scribunto/Lua_reference_manual#Patterns
   −
function str.split(inputstr, sep, no_pattern, ignore_null)
+
Usage:
−
--#invoke 支援
+
{{#invoke:String|escapePattern|pattern_string}}
−
if type(inputstr) == type({table}) then
+
 
−
if not getArgs then getArgs = require('Module:Arguments').getArgs end
+
Parameters
−
args = getArgs(inputstr, {parentFirst=true})
+
    pattern_string: The pattern string to escape.
−
for arg_name, arg_value in pairs( args ) do
+
]]
−
if arg_name == 1 or arg_name == '1' or arg_name == "str" or arg_name == "inputstr" or arg_name == "input" then
+
function str.escapePattern( frame )
−
input_str = arg_value
+
local pattern_str = frame.args[1]
−
elseif arg_name == 2 or arg_name == '2' or arg_name == "sep" or arg_name == "separator" then
+
if not pattern_str then
−
separ = arg_value
+
return str._error( 'No pattern string specified' )
−
elseif arg_name == 3 or arg_name == '3' or arg_name == "no_pattern" or arg_name == "no pattern" then
  −
no_pattern_flag = arg_value
  −
elseif arg_name == 4 or arg_name == '4' or arg_name == "ignore_null" or arg_name == "ignore null" then
  −
ignore_null_flag = arg_value
  −
elseif arg_name == 5 or arg_name == '5' or arg_name == "format" then
  −
format = arg_value or "*{{{1}}}\n";
  −
end
  −
end
  −
if not yesno then yesno = require('Module:Yesno') end
  −
no_pattern_flag = yesno( no_pattern_flag or 'yes' )
  −
ignore_null_flag = yesno( ignore_null_flag or 'no' )
  −
is_invoke = true
  −
format = mw.ustring.gsub(format or "*{{{1}}}\n", "%{%{%{.-%}%}%}", "%%s" );
  −
it = mw.ustring.find(format, "%%s", 1)
  −
if it == nil then format = format .. "%s" end
  −
format = mw.ustring.gsub(format, "\\n", "\n")
  −
else
  −
input_str = inputstr
  −
separ = sep
  −
no_pattern_flag = no_pattern
  −
ignore_null_flag = ignore_null
  −
is_invoke = false
   
end
 
end
−
input_str = input_str or ''
+
local result = str._escapePattern( pattern_str )
−
separ = separ or "%s"
+
return result
−
if no_pattern_flag == nil then no_pattern_flag = true end
+
end
−
if ignore_null_flag == nil then ignore_null_flag = false end
     −
length = mw.ustring.len(input_str)
+
--[[
−
--split函數起點
+
count
−
if no_pattern_flag then
+
This function counts the number of occurrences of one string in another.
−
separ = mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(mw.ustring.gsub(separ,
+
]]
−
"%[", "%["), "%]", "%]"), "%{", "%{"), "%}", "%}"), "%%", "%%%%"), "%)", "%)"), "%-", "%-"),
+
function str.count(frame)
−
"%^", "%^"), "%$", "%$"), "%(", "%("), "%.", "%."), "%*", "%*"), "%+", "%+"), "%|", "%|");
+
local args = str._getParameters(frame.args, {'source', 'pattern', 'plain'})
 +
local source = args.source or ''
 +
local pattern = args.pattern or ''
 +
local plain = str._getBoolean(args.plain or true)
 +
if plain then
 +
pattern = str._escapePattern(pattern)
 
end
 
end
−
iterator = 1 ; i = 1 ; flag = true
+
local _, count = mw.ustring.gsub(source, pattern, '')
−
result = {}
+
return count
−
separ_str_begin, separ_str_end = mw.ustring.find(input_str, separ, iterator)
+
end
−
--
  −
debug1 = 1
  −
--
  −
while flag do
  −
debug1 = debug1 + 1
  −
if separ_str_begin == nil or iterator > length or debug1 >= 100 then
  −
separ_str_begin = 0
  −
separ_str_end = -2
  −
flag = false
  −
end
  −
if separ_str_end < separ_str_begin then separ_str_end = separ_str_begin end
  −
finded_str = mw.ustring.sub(input_str, iterator, separ_str_begin - 1)
  −
if not(mw.text.trim(finded_str) == '' and ignore_null_flag) then
  −
result[i] = finded_str
  −
i = i + 1
  −
end
     −
iterator = separ_str_end + 1
+
--[[
−
separ_str_begin, separ_str_end = mw.ustring.find(input_str, separ, iterator)
+
endswith
 +
This function determines whether a string ends with another string.
 +
]]
 +
function str.endswith(frame)
 +
local args = str._getParameters(frame.args, {'source', 'pattern'})
 +
local source = args.source or ''
 +
local pattern = args.pattern or ''
 +
if pattern == '' then
 +
-- All strings end with the empty string.
 +
return "yes"
 
end
 
end
−
if is_invoke then
+
if mw.ustring.sub(source, -mw.ustring.len(pattern), -1) == pattern then
−
body = ''
+
return "yes"
−
for i, result_str in pairs( result ) do
+
else
−
body = body .. mw.ustring.gsub(format, "%%s", result_str)
+
return ""
−
end
  −
return body
   
end
 
end
−
return result;
   
end
 
end
   第503行： 第519行：  
]]
 
]]
 
function str._getParameters( frame_args, arg_list )
 
function str._getParameters( frame_args, arg_list )
−
    local new_args = {};
+
local new_args = {}
−
    local index = 1;
+
local index = 1
−
    local value;
+
local value
−
   
+
 
−
    for i,arg in ipairs( arg_list ) do
+
for _, arg in ipairs( arg_list ) do
−
        value = frame_args[arg]
+
value = frame_args[arg]
−
        if value == nil then
+
if value == nil then
−
            value = frame_args[index];
+
value = frame_args[index]
−
            index = index + 1;
+
index = index + 1
−
        end
+
end
−
        new_args[arg] = value;
+
new_args[arg] = value
−
    end
+
end
−
   
+
 
−
    return new_args;
+
return new_args
−
end      
+
end
    
--[[
 
--[[
第523行： 第539行：  
]]
 
]]
 
function str._error( error_str )
 
function str._error( error_str )
−
    local frame = mw.getCurrentFrame();
+
local frame = mw.getCurrentFrame()
−
    local error_category = frame.args.error_category or '字符串模块报告的错误';
+
local error_category = frame.args.error_category or 'Errors reported by Module String'
−
    local ignore_errors = frame.args.ignore_errors or false;
+
local ignore_errors = frame.args.ignore_errors or false
−
    local no_category = frame.args.no_category or false;
+
local no_category = frame.args.no_category or false
−
   
+
 
−
    if str._getBoolean(ignore_errors) then
+
if str._getBoolean(ignore_errors) then
−
        return '';
+
return ''
−
    end
+
end
−
   
+
 
−
    local error_str = '<strong class="error">字符串模块出错：' .. error_str .. '</strong>';
+
local error_str = '<strong class="error">String Module Error: ' .. error_str .. '</strong>'
−
    if error_category ~= '' and not str._getBoolean( no_category ) then
+
if error_category ~= '' and not str._getBoolean( no_category ) then
−
        error_str = '[[Category:' .. error_category .. ']]' .. error_str;
+
error_str = '[[Category:' .. error_category .. ']]' .. error_str
−
    end      
+
end
−
   
+
 
−
    return error_str;
+
return error_str
 
end
 
end
   第544行： 第560行：  
]]
 
]]
 
function str._getBoolean( boolean_str )
 
function str._getBoolean( boolean_str )
−
    local boolean_value;
+
local boolean_value
−
   
+
 
−
    if type( boolean_str ) == 'string' then
+
if type( boolean_str ) == 'string' then
−
        boolean_str = boolean_str:lower();
+
boolean_str = boolean_str:lower()
−
        if boolean_str == 'false' or boolean_str == 'no' or boolean_str == '0'  
+
if boolean_str == 'false' or boolean_str == 'no' or boolean_str == '0'
−
                or boolean_str == '' then
+
or boolean_str == '' then
−
            boolean_value = false;
+
boolean_value = false
−
        else
+
else
−
            boolean_value = true;
+
boolean_value = true
−
        end  
+
end
−
    elseif type( boolean_str ) == 'boolean' then
+
elseif type( boolean_str ) == 'boolean' then
−
        boolean_value = boolean_str;
+
boolean_value = boolean_str
−
    else
+
else
−
        error( '布尔值找不到' );
+
error( 'No boolean value found' )
−
    end  
+
end
−
    return boolean_value
+
return boolean_value
 
end
 
end
    
--[[
 
--[[
−
Helper function that escapes all pattern characters so that they will be treated  
+
Helper function that escapes all pattern characters so that they will be treated
 
as plain text.
 
as plain text.
 
]]
 
]]
 
function str._escapePattern( pattern_str )
 
function str._escapePattern( pattern_str )
−
    return mw.ustring.gsub( pattern_str, "([%(%)%.%%%+%-%*%?%[%^%$%]])", "%%%1" );
+
return mw.ustring.gsub( pattern_str, "([%(%)%.%%%+%-%*%?%[%^%$%]])", "%%%1" )
 
end
 
end
    
return str
 
return str
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