此输入文件有一些新的皱纹，而原始CS：GO示例中没有这些皱纹：
"
在某些值字符串中嵌入转义引号- 一些带引号的值字符串跨越多行
- 一些值以结尾的环境条件结尾（例如
[$WIN32]
，[$OSX]
） - 在文件中嵌入注释，标记为“ //”
通过修改的定义来解决前两个问题
value_qs。由于值现在比键具有更全面的功能，因此我决定为其使用单独的QuotedString定义：
key_qs = QuotedString('"').setName("key_qs")value_qs = QuotedString('"', escChar='\', multiline=True).setName("value_qs")第三个需要更多的重构。这些限定条件的使用类似于
#IFDEFC中的宏-仅当环境符合条件时，它们才启用/禁用定义。其中一些条件甚至是布尔表达式：
[!$PS3]
[$WIN32||$X360||$OSX]
[!$X360&&!$PS3]
这可能会导致定义文件中的键重复，例如以下几行：
"Menu_Dlg_Leaderboards_Lost_Connection" "You must be connected to Xbox LIVE to view Leaderboards. Please check your connection and try again." [$X360]"Menu_Dlg_Leaderboards_Lost_Connection" "You must be connected to PlayStation®Network and Steam to view Leaderboards. Please check your connection and try again." [$PS3]"Menu_Dlg_Leaderboards_Lost_Connection" "You must be connected to Steam to view Leaderboards. Please check your connection and try again."
其中包含3个键“ Menu_Dlg_Leaderboards_Lost_Connection”的定义，具体取决于所设置的环境值。
为了在解析文件时不会丢失这些值，我选择了在解析时通过附加条件（如果存在）来修改密钥。这段代码实现了更改：
LBRACK,RBRACK = map(Suppress, "[]")qualExpr = Word(alphanums+'$!&|')qualExprCondition = LBRACK + qualExpr + RBRACKkey_value = Group(key_qs + value + Optional(qualExprCondition("qual")))def addQualifierToKey(tokens): tt = tokens[0] if 'qual' in tt: tt[0] += '/' + tt.pop(-1)key_value.setParseAction(addQualifierToKey)这样，在上面的示例中，您将获得3个键：
- Menu_Dlg_Leaderboards_Lost_Connection / $ X360
- Menu_Dlg_Leaderboards_Lost_Connection / $ PS3
- Menu_Dlg_Leaderboards_Lost_Connection
最后，可能是最简单的评论处理。Pyparsing内置了对跳过注释的支持，就像空白一样。您只需要定义注释的表达式，并让顶级解析器忽略它。为了支持此功能，在pyparsing中预定义了几种常见的注释形式。在这种情况下，解决方案只是将最终解析器的定义更改为：
parser.ignore(dblSlashComment)
最后，最后是QuotedString的实现中存在一个小错误，在该错误中，标准的空白字符串文字（例如
t和）
n未处理，仅被视为不必要的转义“
t”或“ n”。所以现在，当这一行被解析时：
"SFUI_SteamOverlay_Text" "This feature requires Steam Community In-Game to be enabled.nnYou might need to restart the game after you enable this feature in Steam:nSteam -> File -> Settings -> In-Game: Enable Steam Community In-Gamen" [$WIN32]
对于值字符串，您只会得到：
This feature requires Steam Community In-Game to be enabled.nnYou might need to restart the game after you enable this feature in Steam:nSteam -> File -> Settings -> In-Game: Enable Steam Community In-Gamen
代替：
This feature requires Steam Community In-Game to be enabled.You might need to restart the game after you enable this feature in Steam:Steam -> File -> Settings -> In-Game: Enable Steam Community In-Game
我将不得不在下一版pyparsing中修复此行为。
这是最终的解析器代码：
from pyparsing import (Suppress, QuotedString, Forward, Group, Dict, ZeroOrMore, Word, alphanums, Optional, dblSlashComment)LBRACE,RBRACE = map(Suppress, "{}")key_qs = QuotedString('"').setName("key_qs")value_qs = QuotedString('"', escChar='\', multiline=True).setName("value_qs")# use this pre to convert integer values to ints at parse timedef convert_integers(tokens): if tokens[0].isdigit(): tokens[0] = int(tokens[0])value_qs.setParseAction(convert_integers)LBRACK,RBRACK = map(Suppress, "[]")qualExpr = Word(alphanums+'$!&|')qualExprCondition = LBRACK + qualExpr + RBRACKvalue = Forward()key_value = Group(key_qs + value + Optional(qualExprCondition("qual")))def addQualifierToKey(tokens): tt = tokens[0] if 'qual' in tt: tt[0] += '/' + tt.pop(-1)key_value.setParseAction(addQualifierToKey)struct = (LBRACE + Dict(ZeroOrMore(key_value)) + RBRACE).setName("struct")value <<= (value_qs | struct)parser = Dict(key_value)parser.ignore(dblSlashComment)sample = open('cs_go_sample2.txt').read()config = parser.parseString(sample)print (config.keys())for k in config.lang.keys(): print ('- ' + k)#~ config.lang.pprint()print (config.lang.Tokens.StickerKit_comm01_burn_them_all)print (config.lang.Tokens['SFUI_SteamOverlay_Text/$WIN32'])
