[solved] fasm1: needed mismatch directive

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ProMiNick

Joined: 24 Mar 2012
Posts: 821
Location: Russian Federation, Sochi

ProMiNick 14 Feb 2019, 16:41

needed absolutely sintactical identic to match its contrpart directive mismatch no matter via macros or internal

if we introduce new syntax element it should accept all intuitive syntax cases (but for now it accepts only one of 4 possible)

Code:

macro mismatch line&
{
        local flag1, flag2
        match statement =\{ action =\}, line
        \{       flag1 equ
                match statement \\{ flag2 equ \\}
                match any,flag2 \\{ action \\} \}
        match statement =\{ action, line
        \{       flag1 equ
                match statement \\{ flag2 equ \\}
                match any,flag2 \\{ action \}
        match =flag1 statement =\{, flag1 line
        \{       flag1 equ
                match statement \\{ flag2 equ \\}
                match any,flag2 \\{ \}
        match =flag1 statement, flag1 line
        \{       flag1 equ
                match statement \\{ flag2 equ \\}
                match any,flag2 \}
}

mismatch =hello,hell ; work
{
display 'OK'
}
mismatch =hello2,hell ; work
{ display 'OK' }
mismatch =hello2,hell {
display 'OK' } ; error start from here
mismatch =hello2,hell { display 'OK'
}
mismatch =hello2,hell { display 'OK' }

may be it could be realized internaly? (mismatch is simpler form of match: no replacement of params with pattern in inner block - only checking condition with inversed result)

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Last edited by ProMiNick on 14 Feb 2019, 17:45; edited 1 time in total

14 Feb 2019, 16:41

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8466
Location: Kraków, Poland

Tomasz Grysztar 14 Feb 2019, 17:40

I believe this can be macro-emulated in a much simpler way:

Code:

macro mismatch statement&
{
   local F
   F equ 1
   match statement \{ F equ 0 \}
   match F,F \{ rept F \}
}

This, just like your macro, does not work if you put opening brace on the same line. But we can try to go fully insane:

Code:

macro mismatch line&
{
   local buffer,E,F
   define buffer line
   define F
   match e {, buffer \{ define E e
                        define F 1 { \}
   match e { f, buffer \{ define E e
                          define F 1 { f \}
   match , F \{ E equ buffer
                define F 1 \}
   match e, E \{ match e \\{ F equ 0*F \\} \}
   match f, F \{ rept f \}
}

This ones seems to work with all your test cases.

14 Feb 2019, 17:40

ProMiNick

Joined: 24 Mar 2012
Posts: 821
Location: Russian Federation, Sochi

ProMiNick 14 Feb 2019, 17:54

Tomasz, thanks. I don`t belived that it was possible via macros.
As allways thou could suprise me.

14 Feb 2019, 17:54

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