Strings and pattern matching

BlitzMax Forums/BlitzMax Beginners Area/Strings and pattern matching

johnnyfreak

(Posted 2008) [#1]

Is there some function in BMax to manipulate strings like "scanf" function of C?

Or

Is there something similar to the pattern matching of OcaML?

the prblem is:

if i have a string "if(condition)then commands else commands endif",
how can i get an array with [condition, commands, commands] strings?

something like

mystring.isLike("if(*)then*else*endif") returning a string array with "*" strings?

or something like

match mystring with:
| if(b)then c else c2 -> [b, c, c2]

?

degac

(Posted 2008) [#2]

a simple code


Local MY$ = "If(*)Then*Else*EndIf"



Local res$[] = Extract(my) 
For Local s$ = EachIn res
	Print s
Next




Function Extract$[](text$) 
'find THEN
'find ENDIF

text=Upper(text)

Local f1:Int , f2:Int,f3:Int
f1 = Instr(text , "THEN")
f2 = Instr(text,"ELSE")
f3 = Instr(text , "ENDIF") 


Print f1+" "+f2+" "+f3

Local arr$[3]

arr[0] = text[2..f1 - 1]
arr[1] = text[f1+3..f2 - 1]
arr[2] = text[f2+3..f3 - 1]



Return arr
End Function

johnnyfreak

(Posted 2008) [#3]

great!

so i can use string as arrays!

very good