calc: boolean expressions
[m6w6/ext-psi] / src / token_oper_cmp.h
diff --git a/src/token_oper_cmp.h b/src/token_oper_cmp.h
new file mode 100644 (file)
index 0000000..04f6be2
--- /dev/null
@@ -0,0 +1,531 @@
+/*******************************************************************************
+ Copyright (c) 2016, Michael Wallner <mike@php.net>.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************/
+
+static inline int psi_token_oper_cmp(token_t op1, token_t op2) {
+       switch (op1) {
+       case PSI_T_NOT:
+               switch (op2) {
+                       case PSI_T_NOT:        return  0;
+                       case PSI_T_TILDE:      return  0;
+                       case PSI_T_ASTERISK:   return -1;
+                       case PSI_T_SLASH:      return -1;
+                       case PSI_T_MODULO:     return -1;
+                       case PSI_T_PLUS:       return -1;
+                       case PSI_T_MINUS:      return -1;
+                       case PSI_T_LSHIFT:     return -1;
+                       case PSI_T_RSHIFT:     return -1;
+                       case PSI_T_LCHEVR:     return -1;
+                       case PSI_T_CMP_LE:     return -1;
+                       case PSI_T_RCHEVR:     return -1;
+                       case PSI_T_CMP_GE:     return -1;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_TILDE:
+               switch (op2) {
+                       case PSI_T_NOT:        return  0;
+                       case PSI_T_TILDE:      return  0;
+                       case PSI_T_ASTERISK:   return -1;
+                       case PSI_T_SLASH:      return -1;
+                       case PSI_T_MODULO:     return -1;
+                       case PSI_T_PLUS:       return -1;
+                       case PSI_T_MINUS:      return -1;
+                       case PSI_T_LSHIFT:     return -1;
+                       case PSI_T_RSHIFT:     return -1;
+                       case PSI_T_LCHEVR:     return -1;
+                       case PSI_T_CMP_LE:     return -1;
+                       case PSI_T_RCHEVR:     return -1;
+                       case PSI_T_CMP_GE:     return -1;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_ASTERISK:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  0;
+                       case PSI_T_SLASH:      return  0;
+                       case PSI_T_MODULO:     return  0;
+                       case PSI_T_PLUS:       return -1;
+                       case PSI_T_MINUS:      return -1;
+                       case PSI_T_LSHIFT:     return -1;
+                       case PSI_T_RSHIFT:     return -1;
+                       case PSI_T_LCHEVR:     return -1;
+                       case PSI_T_CMP_LE:     return -1;
+                       case PSI_T_RCHEVR:     return -1;
+                       case PSI_T_CMP_GE:     return -1;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_SLASH:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  0;
+                       case PSI_T_SLASH:      return  0;
+                       case PSI_T_MODULO:     return  0;
+                       case PSI_T_PLUS:       return -1;
+                       case PSI_T_MINUS:      return -1;
+                       case PSI_T_LSHIFT:     return -1;
+                       case PSI_T_RSHIFT:     return -1;
+                       case PSI_T_LCHEVR:     return -1;
+                       case PSI_T_CMP_LE:     return -1;
+                       case PSI_T_RCHEVR:     return -1;
+                       case PSI_T_CMP_GE:     return -1;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_MODULO:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  0;
+                       case PSI_T_SLASH:      return  0;
+                       case PSI_T_MODULO:     return  0;
+                       case PSI_T_PLUS:       return -1;
+                       case PSI_T_MINUS:      return -1;
+                       case PSI_T_LSHIFT:     return -1;
+                       case PSI_T_RSHIFT:     return -1;
+                       case PSI_T_LCHEVR:     return -1;
+                       case PSI_T_CMP_LE:     return -1;
+                       case PSI_T_RCHEVR:     return -1;
+                       case PSI_T_CMP_GE:     return -1;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_PLUS:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  0;
+                       case PSI_T_MINUS:      return  0;
+                       case PSI_T_LSHIFT:     return -1;
+                       case PSI_T_RSHIFT:     return -1;
+                       case PSI_T_LCHEVR:     return -1;
+                       case PSI_T_CMP_LE:     return -1;
+                       case PSI_T_RCHEVR:     return -1;
+                       case PSI_T_CMP_GE:     return -1;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_MINUS:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  0;
+                       case PSI_T_MINUS:      return  0;
+                       case PSI_T_LSHIFT:     return -1;
+                       case PSI_T_RSHIFT:     return -1;
+                       case PSI_T_LCHEVR:     return -1;
+                       case PSI_T_CMP_LE:     return -1;
+                       case PSI_T_RCHEVR:     return -1;
+                       case PSI_T_CMP_GE:     return -1;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_LSHIFT:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  0;
+                       case PSI_T_RSHIFT:     return  0;
+                       case PSI_T_LCHEVR:     return -1;
+                       case PSI_T_CMP_LE:     return -1;
+                       case PSI_T_RCHEVR:     return -1;
+                       case PSI_T_CMP_GE:     return -1;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_RSHIFT:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  0;
+                       case PSI_T_RSHIFT:     return  0;
+                       case PSI_T_LCHEVR:     return -1;
+                       case PSI_T_CMP_LE:     return -1;
+                       case PSI_T_RCHEVR:     return -1;
+                       case PSI_T_CMP_GE:     return -1;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_LCHEVR:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  0;
+                       case PSI_T_CMP_LE:     return  0;
+                       case PSI_T_RCHEVR:     return  0;
+                       case PSI_T_CMP_GE:     return  0;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_CMP_LE:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  0;
+                       case PSI_T_CMP_LE:     return  0;
+                       case PSI_T_RCHEVR:     return  0;
+                       case PSI_T_CMP_GE:     return  0;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_RCHEVR:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  0;
+                       case PSI_T_CMP_LE:     return  0;
+                       case PSI_T_RCHEVR:     return  0;
+                       case PSI_T_CMP_GE:     return  0;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_CMP_GE:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  0;
+                       case PSI_T_CMP_LE:     return  0;
+                       case PSI_T_RCHEVR:     return  0;
+                       case PSI_T_CMP_GE:     return  0;
+                       case PSI_T_AMPERSAND:  return -1;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_AMPERSAND:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  1;
+                       case PSI_T_CMP_LE:     return  1;
+                       case PSI_T_RCHEVR:     return  1;
+                       case PSI_T_CMP_GE:     return  1;
+                       case PSI_T_AMPERSAND:  return  0;
+                       case PSI_T_CMP_EQ:     return -1;
+                       case PSI_T_CMP_NE:     return -1;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_CMP_EQ:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  1;
+                       case PSI_T_CMP_LE:     return  1;
+                       case PSI_T_RCHEVR:     return  1;
+                       case PSI_T_CMP_GE:     return  1;
+                       case PSI_T_AMPERSAND:  return  1;
+                       case PSI_T_CMP_EQ:     return  0;
+                       case PSI_T_CMP_NE:     return  0;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_CMP_NE:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  1;
+                       case PSI_T_CMP_LE:     return  1;
+                       case PSI_T_RCHEVR:     return  1;
+                       case PSI_T_CMP_GE:     return  1;
+                       case PSI_T_AMPERSAND:  return  1;
+                       case PSI_T_CMP_EQ:     return  0;
+                       case PSI_T_CMP_NE:     return  0;
+                       case PSI_T_CARET:      return -1;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_CARET:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  1;
+                       case PSI_T_CMP_LE:     return  1;
+                       case PSI_T_RCHEVR:     return  1;
+                       case PSI_T_CMP_GE:     return  1;
+                       case PSI_T_AMPERSAND:  return  1;
+                       case PSI_T_CMP_EQ:     return  1;
+                       case PSI_T_CMP_NE:     return  1;
+                       case PSI_T_CARET:      return  0;
+                       case PSI_T_PIPE:       return -1;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_PIPE:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  1;
+                       case PSI_T_CMP_LE:     return  1;
+                       case PSI_T_RCHEVR:     return  1;
+                       case PSI_T_CMP_GE:     return  1;
+                       case PSI_T_AMPERSAND:  return  1;
+                       case PSI_T_CMP_EQ:     return  1;
+                       case PSI_T_CMP_NE:     return  1;
+                       case PSI_T_CARET:      return  1;
+                       case PSI_T_PIPE:       return  0;
+                       case PSI_T_AND:        return -1;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_AND:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  1;
+                       case PSI_T_CMP_LE:     return  1;
+                       case PSI_T_RCHEVR:     return  1;
+                       case PSI_T_CMP_GE:     return  1;
+                       case PSI_T_AMPERSAND:  return  1;
+                       case PSI_T_CMP_EQ:     return  1;
+                       case PSI_T_CMP_NE:     return  1;
+                       case PSI_T_CARET:      return  1;
+                       case PSI_T_PIPE:       return  1;
+                       case PSI_T_AND:        return  0;
+                       case PSI_T_OR:         return -1;
+               }
+               assert(0);
+               break;
+       case PSI_T_OR:
+               switch (op2) {
+                       case PSI_T_NOT:        return  1;
+                       case PSI_T_TILDE:      return  1;
+                       case PSI_T_ASTERISK:   return  1;
+                       case PSI_T_SLASH:      return  1;
+                       case PSI_T_MODULO:     return  1;
+                       case PSI_T_PLUS:       return  1;
+                       case PSI_T_MINUS:      return  1;
+                       case PSI_T_LSHIFT:     return  1;
+                       case PSI_T_RSHIFT:     return  1;
+                       case PSI_T_LCHEVR:     return  1;
+                       case PSI_T_CMP_LE:     return  1;
+                       case PSI_T_RCHEVR:     return  1;
+                       case PSI_T_CMP_GE:     return  1;
+                       case PSI_T_AMPERSAND:  return  1;
+                       case PSI_T_CMP_EQ:     return  1;
+                       case PSI_T_CMP_NE:     return  1;
+                       case PSI_T_CARET:      return  1;
+                       case PSI_T_PIPE:       return  1;
+                       case PSI_T_AND:        return  1;
+                       case PSI_T_OR:         return  0;
+               }
+               assert(0);
+               break;
+       }
+       assert(0);
+       return 0;
+}