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parsereal

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Purpose

Convert a text into a real.

Synopsis

function parsereal(txt:text,start:integer):real

Arguments

txt	A text object
start	Starting position in the text

Return value

The real represented by the string.

Example

The following:

t:=text("a123.4b")
writeln(parsereal(t,2))
writeln(getparam("sys_endparse"))

produces this output:

123.4
7

Further information

The parsing begins at the specified starting position and stops as soon as an invalid character is found. This location is then stored in the parameter sys_endparse.

Related topics

parseint, parseextn, sys_endparse

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