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ee1172e04f
While I do prefer XML over YAML, it's also super verbose.
```xml
<lexer>
<config>
<name>INI</name>
<alias>ini</alias>
<alias>cfg</alias>
<alias>dosini</alias>
<filename>*.ini</filename>
<filename>*.cfg</filename>
<filename>*.inf</filename>
<filename>*.service</filename>
<filename>*.socket</filename>
<filename>.gitconfig</filename>
<filename>.editorconfig</filename>
<filename>pylintrc</filename>
<filename>.pylintrc</filename>
<mime_type>text/x-ini</mime_type>
<mime_type>text/inf</mime_type>
<priority>0.1</priority> <!-- higher priority than Inform 6 -->
</config>
<rules>
<state name="root">
<rule pattern="\s+">
<token type="Text"/>
</rule>
<rule pattern="[;#].*">
<token type="CommentSingle"/>
</rule>
<rule pattern="\[.*?\]$">
<token type="Keyword"/>
</rule>
<rule pattern="(.*?)([ \t]*)(=)([ \t]*)(.*(?:\n[ \t].+)*)">
<bygroups>
<token type="NameAttribute"/>
<token type="Text"/>
<token type="Operator"/>
<token type="Text"/>
<token type="LiteralString"/>
</bygroups>
</rule>
<rule pattern="(.+?)$">
<token type="NameAttribute"/>
</rule>
</state>
</rules>
</lexer>
```
Pros:
- Very succinct
Cons:
- No need to escape regexes
- Bespoke syntax that people will have to learn
- No syntax highlighting in editors, no validation beyond parser
```
config {
name "INI"
aliases "ini", "cfg"
filenames "*.ini", "*.cfg", "*.inf", "*.service", "*.socket", ".gitconfig",
".editorconfig", "pylintrc", ".pylintrc"
mime-types "text/x-ini", "text/inf"
priority 0.1
}
state root {
/\s+/ text
/[;#].*/ commentsingle
/\[.*?\]$/ keyword
/(.*?)([ \t]*)(=)([ \t]*)(.*(?:\n[ \t].+)*)/ by groups
nameattribute, text, operator, text, literalstring
/(.+?)$/ nameattribute
}
`)
```
Pros:
- More succinct than XML
- Can define a schema and have editors use it to validate.
Cons:
- Fucking YAML
- Indentation is awful
- Less succinct than bespoke syntax
- Will need some way to discriminate between "emitters" and "mutators" when parsing, eg. `type: Keyword` vs. `type: {bygroups: [...]}`
```yaml
config:
name: "INI"
aliases: ["ini", "cfg"]
filenames: ["*.ini", "*.cfg", "*.inf", "*.service", "*.socket", ".gitconfig",
".editorconfig", "pylintrc", ".pylintrc"]
mime-types: ["text/x-ini", "text/inf"]
priority: 0.1
state:
root:
rule:
- pattern: "\\s+"
type: Text
- pattern: "[;#].*"
type: CommentSingle
- pattern: "\\[.*?\\]"
type: Keyword
- pattern: "(.*?)([ \\t]*)(=)([ \\t]*)(.*(?:\\n[ \\t].+)*)"
type:
bygroups: [NameAttribute, Text, Operator, Text, LiteralString]
- pattern: "(.+?)$"
type: NameAttribute
```