From 427d2be0040c28bba680c48aca9514ef932ecb56 Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@cab.ark.cs.cmu.edu>
Date: Sat, 26 May 2012 14:55:38 -0400
Subject: remove creg

---
 creg/json_feature_map_lexer.ll | 137 -----------------------------------------
 1 file changed, 137 deletions(-)
 delete mode 100644 creg/json_feature_map_lexer.ll

(limited to 'creg/json_feature_map_lexer.ll')

diff --git a/creg/json_feature_map_lexer.ll b/creg/json_feature_map_lexer.ll
deleted file mode 100644
index f9ce7977..00000000
--- a/creg/json_feature_map_lexer.ll
+++ /dev/null
@@ -1,137 +0,0 @@
-%option nounput
-%{
-
-#include "json_feature_map_lexer.h"
-#include "fdict.h"
-#include "fast_sparse_vector.h"
-
-#define YY_DECL int json_fmap_yylex (void)
-#undef YY_INPUT
-#define YY_INPUT(buf, result, max_size) (result = jfmap_stream->read(buf, max_size).gcount())
-#define YY_SKIP_YYWRAP 1
-int yywrap() { return 1; }
-
-JSONFeatureMapLexer::FeatureMapCallback json_fmap_callback = NULL;
-void* json_fmap_callback_extra = NULL;
-std::istream* jfmap_stream = NULL;
-bool fl = true;
-unsigned spos = 0;
-char featname[16000];
-#define MAX_FEATS 20000
-std::pair<int, float> featmap[MAX_FEATS];
-unsigned curfeat = 0;
-std::string instid;
-
-inline unsigned unicode_escape_to_utf8(uint16_t w1, uint16_t w2, char* putf8) {
-  uint32_t cp;
-  if((w1 & 0xfc00) == 0xd800) {
-    if((w2 & 0xfc00) == 0xdc00) {
-      cp = 0x10000 + (((static_cast<uint32_t>(w1) & 0x3ff) << 10) | (w2 & 0x3ff));
-    } else {
-      abort();
-    }
-  } else {
-    cp = w1;
-  }
-  
-  
-  if(cp < 0x80) {
-    putf8[0] = static_cast<char>(cp);
-    return 1;
-  } else if(cp < 0x0800) {
-    putf8[0] = 0xc0 | ((cp >> 6) & 0x1f);
-    putf8[1] = 0x80 | (cp & 0x3f);
-    return 2;
-  } else if(cp < 0x10000) {
-    putf8[0] = 0xe0 | ((cp >> 6) & 0x0f);
-    putf8[1] = 0x80 | ((cp >> 6) & 0x3f);
-    putf8[2] = 0x80 | (cp & 0x3f);
-    return 3;
-  } else if(cp < 0x1fffff) {
-    putf8[0] = 0xf0 | ((cp >> 18) & 0x07);
-    putf8[1] = 0x80 | ((cp >> 12) & 0x3f);
-    putf8[2] = 0x80 | ((cp >> 6) & 0x3f);
-    putf8[3] = 0x80 | (cp & 0x3f);
-    return 4;
-  } else {
-    abort();
-  } 
-  return 0;
-}
-
-%}
-
-ID [^ \t\n\r]+
-HEX_D [a-fA-F0-9]
-INT [-]?[0-9]+
-DOUBLE {INT}((\.[0-9]+)?([eE][-+]?[0-9]+)?)
-WS [ \t\r\n]
-LCB [{]
-RCB [}]
-UNESCAPED_CH [^\"\\\b\n\r\f\t]
-
-%x JSON PREVAL STRING JSONVAL POSTVAL DOUBLE
-%%
-
-<INITIAL>{ID}                            { instid = yytext; BEGIN(JSON); }
-
-<JSON>{WS}*{LCB}{WS}*                    { BEGIN(PREVAL); }
-
-<JSON>{WS}*{LCB}{WS}*{RCB}\n*            {const SparseVector<float> x;
-                                         json_fmap_callback(instid, x, json_fmap_callback_extra);
-                                         curfeat = 0;
-                                         BEGIN(INITIAL);}
-
-<PREVAL>\"                               { BEGIN(STRING); spos=0; }
-
-<STRING>\"                               { featname[spos] = 0;
-                                           featmap[curfeat].first = FD::Convert(featname);
-                                           BEGIN(JSONVAL);
-                                         }
-<STRING>{UNESCAPED_CH}                   { featname[spos++] = yytext[0]; }
-<STRING>\\\"                             { featname[spos++] = '"'; }
-<STRING>\\\\                             { featname[spos++] = '\\'; }
-<STRING>\\\/                             { featname[spos++] = '/'; }
-<STRING>\\b                              { }
-<STRING>\\f                              { }
-<STRING>\\n                              { }
-<STRING>\\r                              { }
-<STRING>\\t                              { }
-<STRING>\\u{HEX_D}{HEX_D}{HEX_D}{HEX_D}  { uint16_t hex = strtol(&yytext[2], NULL, 16);
-                                           spos += unicode_escape_to_utf8(hex, 0, &featname[spos++])-1;
-                                         }
-
-<JSONVAL>{WS}*:{WS}*                     { BEGIN(DOUBLE); }
-<DOUBLE>{DOUBLE}                         { featmap[curfeat++].second = strtod(yytext, 0);
-                                           BEGIN(POSTVAL); }
-
-<POSTVAL>{WS}*,{WS}*                     { BEGIN(PREVAL); }
-<POSTVAL>{WS}*{RCB}\n*                   {
-                                           const SparseVector<float> x(&featmap[0], &featmap[curfeat]);
-                                           json_fmap_callback(instid, x, json_fmap_callback_extra);
-                                           curfeat = 0;
-                                           BEGIN(INITIAL);
-                                         }
-
-<PREVAL,POSTVAL,DOUBLE,JSONVAL,INITIAL>. { std::cerr << "bad input: " << yytext << std::endl; abort(); }
-
-%%
-
-void JSONFeatureMapLexer::ReadRules(std::istream* in, FeatureMapCallback func, void* extra) {
-  json_fmap_callback = func;
-  json_fmap_callback_extra = extra;
-  jfmap_stream = in;
-  json_fmap_yylex();
-}
-
-#if 0
-void cb(const std::string& id, const SparseVector<float>& fmap, void* extra) {
-  (void) extra;
-  static int cc = 0;
-  cc++;
-}
-
-int main() {
-  JSONFeatureMapLexer::ReadRules(&std::cin, cb, NULL);
-}
-#endif
-- 
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