Se añaden componentes a la UI y se implementan partes del lexer

1 files changed, 109 insertions, 0 deletions

diff --git a/lexer.py b/lexer.py
index 7383180..49d75df 100644
--- a/lexer.py
+++ b/lexer.py
@@ -25,6 +25,114 @@ t_string_lit = r'"[[:print]]*"'
 
 def inicio_lexer(data):
     tabla = TablaLex()
+    
+    es_string = False
+    es_caracter = False
+    es_comentario = False
+    selector = ''
+    recol_string = ''
+    recol_caracter = ''
+    recol_comentario = ''
+    recol_operador = ''
+    
+    for c in data + "\n":
+        print (c + ' (' + selector + ')')
+        
+        if selector == '':
+            # Entradas a tokens
+            if c == '"':
+                selector = 'STRING_LIT'
+                continue
+            elif c == '\'':
+                selector = 'CHAR_LIT'
+                continue
+            elif c == '/':
+                recol_comentario = '/'
+            elif (c == '=' or c == '+' or c == '-' or c == '&' or c == '|') and len(recol_operador) == 0:
+                recol_operador = c
+                continue
+            elif c == '!' or c == '<' or c == '>':
+                recol_operador = c
+                continue
+            elif c == '{':
+                tabla.insertar(LexToken('{', None, None, 1))
+            elif c == '}':
+                tabla.insertar(LexToken('}', None, None, 1))
+            elif c == '(':
+                tabla.insertar(LexToken('(', None, None, 1))
+            elif c == ')':
+                tabla.insertar(LexToken(')', None, None, 1))
+            elif c == ',':
+                tabla.insertar(LexToken(',', None, None, 1))
+            elif c == ';':
+                tabla.insertar(LexToken(';', None, None, 1))
+            elif c == '*':
+                tabla.insertar(LexToken('*', None, None, 1))
+
+            # Apertura de comentario
+            if recol_comentario == '/' and c == '*':
+                selector = 'COMMENT'
+                recol_comentario = ''
+                continue
+
+            # Apertura de operador compuesto
+            if len(recol_operador) > 0:
+                rc = recol_operador + c
+                if (rc == '>=' or rc == '<=' or rc == '==' or rc == '!=' or
+                    rc == '&&' or rc == '||' or rc == '++' or rc == '--'):
+                    # Operador compuesto
+                    tabla.insertar(LexToken(rc, None, None, 1))
+                    recol_operador = ''
+                    continue
+                else:
+                    # Operador simple
+                    tabla.insertar(LexToken(recol_operador, None, None, 1))
+                    recol_operador = ''
+        
+        # Cadenas de texto
+        if selector == 'STRING_LIT':
+            if c == '"':
+                tabla.insertar(LexToken('STRING_LIT', None, recol_string, 1))
+                selector = ''
+                recol_string = ''
+            else:
+                recol_string += c
+            continue
+
+        # Caracteres
+        if selector == 'CHAR_LIT':
+            if len(recol_caracter) > 1:
+                print ('Error: más de un caracter en una literal de caracter')
+                break
+            if c == '\'':
+                if len(recol_caracter) == 0:
+                    print ('Error: literal de caracter vacía')
+                    break
+                tabla.insertar(LexToken('CHAR_LIT', None, recol_caracter, 1))
+                selector = ''
+                recol_caracter = ''
+                continue
+            else:
+                recol_caracter += c
+
+        # Comentarios
+        if selector == 'COMMENT':
+            if c == '*':
+                recol_comentario = c
+                continue
+            elif recol_comentario == '*':
+                if c == '/':
+                    selector = ''
+                    recol_comentario = ''
+                    continue
+                else:
+                    recol_comentario = ''
+                    continue
+
+    print (str(tabla))
+        
+    '''
+    tabla = TablaLex()
     # booleano ivan = verdadero
     tabla.insertar(LexToken('BOOLEAN', None, None, 1))
     tabla.insertar(LexToken('IDENT', 'ivan', None, 1))
@@ -39,3 +147,4 @@ def inicio_lexer(data):
     tabla.actualizar('ivan', ident)
     ident = tabla.buscar('ivan')
     print (str(ident))
+    '''