Programmer Guide/Command Reference/LINELENGTH: Difference between revisions
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<code><var>var</var> := LINELENGTH <var> | The <code>LINELENGTH</code> command returns the length of its arguments, all concatenated and separated by one space character from one another. | ||
<var>var</var> := LINELENGTH <var>arg<sub>1</sub></var> ... <var>arg<sub>n</sub></var> | |||
- | // returns 5 (3 arguments of 1 character each, plus 2 | ||
// whitespace characters, one separating "a" from "b", the | |||
// other separating "b" from "c" | |||
#a := linelength a b c | |||
// also returns 5 (3 arguments of 1 character each, plus 2 | |||
// whitespace characters, one separating "a" from "b", the | |||
// other separating "b" from "c" | |||
#a := linelength a b c | |||
// returns 5 - due to quoting, the first argument now is "a b c" | |||
#a := linelength 'a b c' | |||
// returns 6 - there is exactly one quoted argument, and under | |||
// quotes, each whitespace character counts | |||
#a := linelength 'a b c' | |||
Compare this with the <code>[[Programmer_Guide/Command_Reference/LENGTH|LENGTH]]</code> command returning the length of its first argument only: | |||
// returns 5 (length of "hello") | |||
#len := length hello | #len := linelength hello world | ||
// | |||
#len := linelength hello world | // returns 11 (length of "hello", plus one delimiting character, | ||
// plus length of "world") | |||
#len := linelength hello world | |||
Revision as of 16:40, 11 April 2011
The LINELENGTH command returns the length of its arguments, all concatenated and separated by one space character from one another.
var := LINELENGTH arg1 ... argn
// returns 5 (3 arguments of 1 character each, plus 2 // whitespace characters, one separating "a" from "b", the // other separating "b" from "c" #a := linelength a b c // also returns 5 (3 arguments of 1 character each, plus 2 // whitespace characters, one separating "a" from "b", the // other separating "b" from "c" #a := linelength a b c // returns 5 - due to quoting, the first argument now is "a b c" #a := linelength 'a b c'
// returns 6 - there is exactly one quoted argument, and under // quotes, each whitespace character counts #a := linelength 'a b c'
Compare this with the LENGTH command returning the length of its first argument only:
// returns 5 (length of "hello") #len := linelength hello world
// returns 11 (length of "hello", plus one delimiting character, // plus length of "world") #len := linelength hello world
