"musickit_midnightriders_01_desc"       "\"HAPPY HOLIDAYS, ****ERS!\"\n    -Midnight Riders"

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：

1. \"在某些值字符串中嵌入转义引号
2. 一些带引号的值字符串跨越多行
3. 一些值以结尾的环境条件结尾（例如[$WIN32]，[$OSX]）
4. 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 + RBRACK

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)

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.\n\nYou might need to restart the game after you enable this feature in Steam:\nSteam -> File -> Settings -> In-Game: Enable Steam Community In-Game\n" [$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 code to convert integer values to ints at parse time
def 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 + RBRACK

value = 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'])