diff options
Diffstat (limited to 'dtc-lexer.l')
| -rw-r--r-- | dtc-lexer.l | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/dtc-lexer.l b/dtc-lexer.l index 677abe4..eec6527 100644 --- a/dtc-lexer.l +++ b/dtc-lexer.l @@ -23,6 +23,7 @@ %x INCLUDE %x BYTESTRING %x PROPNODENAME +%s V1 PROPCHAR [a-zA-Z0-9,._+*#?-] UNITCHAR [0-9a-f,] @@ -44,12 +45,18 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@]) #define DPRINT(fmt, ...) do { } while (0) #endif +static int dts_version; /* = 0 */ - +#define BEGIN_DEFAULT() if (dts_version == 0) { \ + DPRINT("<INITIAL>\n"); \ + BEGIN(INITIAL); \ + } else { \ + DPRINT("<V1>\n"); \ + BEGIN(V1); \ + } %} %% - <*>"/include/" BEGIN(INCLUDE); <INCLUDE>\"[^"\n]*\" { @@ -58,7 +65,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@]) /* Some unrecoverable error.*/ exit(1); } - BEGIN(INITIAL); + BEGIN_DEFAULT(); } @@ -78,11 +85,20 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@]) return DT_STRING; } +<*>"/dts-v1/" { + yylloc.filenum = srcpos_filenum; + yylloc.first_line = yylineno; + DPRINT("Keyword: /dts-v1/\n"); + dts_version = 1; + BEGIN_DEFAULT(); + return DT_V1; + } + <*>"/memreserve/" { yylloc.filenum = srcpos_filenum; yylloc.first_line = yylineno; DPRINT("Keyword: /memreserve/\n"); - BEGIN(INITIAL); + BEGIN_DEFAULT(); return DT_MEMRESERVE; } @@ -95,7 +111,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@]) return DT_LABEL; } -[bodh]# { +<INITIAL>[bodh]# { yylloc.filenum = srcpos_filenum; yylloc.first_line = yylineno; if (*yytext == 'b') @@ -110,7 +126,15 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@]) return DT_BASE; } -[0-9a-fA-F]+ { +<INITIAL>[0-9a-fA-F]+ { + yylloc.filenum = srcpos_filenum; + yylloc.first_line = yylineno; + yylval.literal = strdup(yytext); + DPRINT("Literal: '%s'\n", yylval.literal); + return DT_LEGACYLITERAL; + } + +<V1>[0-9]+|0[xX][0-9a-fA-F]+ { yylloc.filenum = srcpos_filenum; yylloc.first_line = yylineno; yylval.literal = strdup(yytext); @@ -138,7 +162,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@]) yylloc.filenum = srcpos_filenum; yylloc.first_line = yylineno; DPRINT("/BYTESTRING\n"); - BEGIN(INITIAL); + BEGIN_DEFAULT(); return ']'; } @@ -147,7 +171,7 @@ REFCHAR ({PROPCHAR}|{UNITCHAR}|[/@]) yylloc.first_line = yylineno; DPRINT("PropNodeName: %s\n", yytext); yylval.propnodename = strdup(yytext); - BEGIN(INITIAL); + BEGIN_DEFAULT(); return DT_PROPNODENAME; } |