diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 38 |
1 files changed, 33 insertions, 5 deletions
@@ -71237,11 +71237,17 @@ which will be interpreted as pattern variables, and may be bound or unbound. If they are not symbols, then they are treated as expressions (of the pattern language, not \*(TL) and evaluated accordingly. -The +The optional .meta input -argument is a list of strings, which may be lazy. It represents the -lines of the text stream to be processed. If omitted, it defaults to -.codn nil . +argument is an object of one of several types. It may be a stream, +character string or list of strings. If it is a string, then +it is converted to a list containing that string. +A list of strings represents zero or more lines of text to be +processed. If the +.meta input +argument is omitted, then it defaults to +.codn nil , +interpreted as an empty list of lines. The .meta files @@ -71353,7 +71359,11 @@ macro invokes the \*(TX pattern matching function .meta name on some input given by the .meta input -parameter, which is a list of strings, or a single string. +parameter, whose semantics are the same as the +.meta input +argument of the +.code match-fun +funtion. If .meta name @@ -71515,6 +71525,24 @@ otherwise the forms are evaluated in order and the value of the last one specifies the result of .codn txr-case . +The value of the input +.meta input-form +is expected to be one of the same kinds of objects as given by the +requirements for the +.meta input +argument of the +.code match-fun +functions. + +If +.meta input-form +evaluates to a stream object according to the +.code streamp +function, then the stream is converted to a lazy list of lines, +as if by invoking the +.code get-lines +function on that stream; that list then serves as input to the clauses. + .coNP Function @ txr-parse .synb .mets (txr-parse >> [ source >> [ error-stream |