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sconfig: Allow strings in devicetree.cb 

Currently you cannot assign a string to a register in devicetree because
the quotes are removed when parsing and the literal is assigned directly.

Add a parse option for two double-quotation marks to indicate a string
and return a quoted literal that can be assigned to a register with a
'const char *' type.

Example:

chip drivers/i2c/generic
  register "hid" = ""INT343B""
  register "uid" = "1"
  device i2c 15 on end
end

Change-Id: I621cde1f7547494a8035fbbab771f29522da1687
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14787
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Duncan Laurie 2016-05-07 19:43:25 -07:00 committed by Duncan Laurie
parent b2aa5283e6
commit b1fb0152bf
1 changed files with 1 additions and 0 deletions
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util/sconfig/sconfig.l
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@ -49,6 +49,7 @@ end {return(END);}
[0-9.]+ {yylval.string = malloc(yyleng+1); strncpy(yylval.string, yytext, yyleng); yylval.string[yyleng]='\0'; return(NUMBER);}
[0-9a-fA-F.]+ {yylval.string = malloc(yyleng+1); strncpy(yylval.string, yytext, yyleng); yylval.string[yyleng]='\0'; return(NUMBER);}
INT[A-D] {yylval.string = malloc(yyleng+1); strncpy(yylval.string, yytext, yyleng); yylval.string[yyleng]='\0'; return(PCIINT);}
\"\"[^\"]+\"\" {yylval.string = malloc(yyleng-1); strncpy(yylval.string, yytext+1, yyleng-2); yylval.string[yyleng-2]='\0'; return(STRING);}
\"[^\"]+\" {yylval.string = malloc(yyleng-1); strncpy(yylval.string, yytext+1, yyleng-2); yylval.string[yyleng-2]='\0'; return(STRING);}
[^ \n\t]+ {yylval.string = malloc(yyleng+1); strncpy(yylval.string, yytext, yyleng); yylval.string[yyleng]='\0'; return(STRING);}
%%