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Diffstat (limited to 'fitsy/nrrdlex.L')
| -rw-r--r-- | fitsy/nrrdlex.L | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/fitsy/nrrdlex.L b/fitsy/nrrdlex.L new file mode 100644 index 0000000..65bb664 --- /dev/null +++ b/fitsy/nrrdlex.L @@ -0,0 +1,215 @@ +/* Copyright (C) 1999-2018 + * Smithsonian Astrophysical Observatory, Cambridge, MA, USA + * For conditions of distribution and use, see copyright notice in "copyright" + */ +%option noyywrap +%option caseless +%option never-interactive +%option c++ + +%{ + #include <stdio.h> + #include <stdlib.h> + #include <string.h> + + #include "util.h" + #include "nrrdparser.H" + + extern YYSTYPE* nrrdlval; + extern nrrdFlexLexer* nrrdlexx; +%} + +%x DISCARD + +D [0-9] +E [Ee][+-]?{D}+ + +/* rules */ + +%% + +<DISCARD>[\n] { // special case-- #\n + BEGIN INITIAL; + yyless(0); // put back the terminator + strcpy(nrrdlval->str,""); // feed a blank string + return STRING; + } + +<DISCARD>[^\n]* { // Discard reset of line + BEGIN INITIAL; + int ll = yyleng <(NRRDPARSERSIZE-1) ? yyleng:(NRRDPARSERSIZE-1); + strncpy(nrrdlval->str,yytext,ll); + nrrdlval->str[ll] = '\0'; + return STRING; + } + +debug {return DEBUG_;} +on {return ON_;} +off {return OFF_;} + +NRRD0001 {return NRRD0001_;} +NRRD0002 {return NRRD0002_;} +NRRD0003 {return NRRD0003_;} +NRRD0004 {return NRRD0004_;} +NRRD0005 {return NRRD0005_;} + +data {return DATA_;} +file {return FILE_;} + +space {return SPACE_;} +units {return UNITS_;} +dimentions {return DIMENSIONS_;} +origin {return ORIGIN_;} +directions {return DIRECTIONS_;} + +dimension {return DIMENSION_;} + +type {return TYPE_;} +signed {return SIGNED_;} +unsigned {return UNSIGNED_;} +char {return CHAR_;} +int8 {return INT8_;} +int8_t {return INT8_T_;} +uchar {return UCHAR_;} +uint8 {return UINT8_;} +uint8_t {return UINT8_T_;} +short {return SHORT_;} +int {return INT_;} +int16 {return INT16_;} +int16_t {return INT16_T_;} +ushort {return USHORT_;} +unint16 {return UINT16_;} +unint16_t {return UINT16_T_;} +int32 {return INT32_;} +int32_t {return INT32_T_;} +uint {return UINT_;} +uint32 {return UINT32_;} +uint32_t {return UINT32_T_;} +long {return LONG_;} +longlong {return LONGLONG_;} +int64 {return INT64_;} +int64_t {return INT64_T_;} +unlonglong {return ULONGLONG_;} +unint64 {return UINT64_;} +unint64_t {return UINT64_T_;} +float {return FLOAT_;} +double {return DOUBLE_;} + +block {return BLOCK_;} +size {return SIZE_;} +blocksize {return BLOCKSIZE_;} + +encoding {return ENCODING_;} +raw {return RAW_;} +txt {return TXT_;} +text {return TEXT_;} +ascii {return ASCII_;} +hex {return HEX_;} +gz {return GZ_;} +gzip {return GZIP_;} +bz2 {return BZ2_;} +bzip2 {return BZIP2_;} + +endian {return ENDIAN_;} +big {return BIG_;} +little {return LITTLE_;} + +content {return CONTENT_;} + +old {return OLD_;} +min {return MIN_;} +oldmin {return OLDMIN_;} +max {return MAX_;} +oldmax {return OLDMAX_;} + +skip {return SKIP_;} +line {return LINE_;} +lineskip {return LINESKIP_;} +byte {return BYTE_;} +byteskip {return BYTESKIP_;} + +number {return NUMBER_;} + +sample {return SAMPLE_;} +sampleunits {return SAMPLEUNITS_;} + +sizes {return SIZES_;} +spacings {return SPACINGS_;} +thickness {return THICKNESSES_;} +axis {return AXIS_;} +mins {return MINS_;} +axismins {return AXISMINS_;} +maxs {return MAXS_;} +axismaxs {return AXISMAXS_;} +centers {return CENTERS_;} +centerings {return CENTERINGS_;} +cell {return CELL_;} +node {return NODE_;} +none {return NONE_;} +labels {return LABELS_;} +kinds {return KINDS_;} +domains {return DOMAINS_;} + +[+-]?{D}+ { // Integer + nrrdlval->integer = atoi(yytext); + return INT; + } + +[+-]?{D}+"."?({E})? | +[+-]?{D}*"."{D}+({E})? { // Real Number + nrrdlval->real = atof(yytext); + return REAL; + } + + +\{[^\}\n]*\} { // Quoted String + int ll = (yyleng-2)<(NRRDPARSERSIZE-1) ? (yyleng-2):(NRRDPARSERSIZE-1); + strncpy(nrrdlval->str,yytext+1,ll); // skip the '{' + nrrdlval->str[ll] = '\0'; // Remove the '}' + return STRING; + } + +[0-9A-Za-z]+ { // General String + int ll = yyleng <(NRRDPARSERSIZE-1) ? yyleng:(NRRDPARSERSIZE-1); + strncpy(nrrdlval->str,yytext,ll); + nrrdlval->str[ll] = '\0'; + return STRING; + } + +[ \t]+ { // White Spaces + } + +\r\n { // windows line feed + return '\n'; + } + +\\n { // fake line feed + return '\n'; + } + +\n { // linefeed + return '\n'; + } + +<<EOF>> { // eof + return EOF_; + } + +. { // Else, return the char + return yytext[0]; + } + +%% + +void nrrdDiscard(int doit) +{ + if (nrrdlexx) + nrrdlexx->begin(DISCARD, doit); +} + +void nrrdFlexLexer::begin(int which, int doit) +{ + BEGIN which; + if (doit) + yyless(0); +} |