parse
Parses a single brace format term from a log message into a message template builder. Note that the default brace style parser currently does not handle anything other than the simplest "{n}" forms of parameter specification, and it will treat anything more complex as a parsing error.
A simple example of a positional parameter:
message: "Hello {0} World"
termStart: 6 ───┚ ╿
formatStart: -1 │
termEnd: 9 ────────╯
A more complex example with a trailing format specification:
message: "Hello {0,number,#} World"
termStart: 6 ───┚ ╿ ╿
formatStart: 9 ────╯ │
termEnd: 18 ────────────────╯
Parameters
the message template builder.
the zero-based argument index for the parameter.
the complete log message string.
the index of the initial '{' character that starts the term.
the index of the optional formatting substring after the first comma (which extends to termEnd - 1) or -1 if there is no formatting substring.
the index after the final '}' character that completes this term.