#include "tlog.h"
#include "template.h"
+/*
+ * Default operations and functions
+ */
+
+static int
+isVariable(VariableValue value) {
+ if ( value == NULL )
+ return 0;
+
+ if ( (value->flags & TND_DEFINED) == 0 ) {
+ return 0;
+ } else {
+ switch (value->type) {
+ case valueInt:
+ return value->value.intValue;
+ case valueString:
+ if ( value->value.stringValue == NULL || *value->value.stringValue == '\0' )
+ return 0;
+ return 1;
+ case valueTime:
+ return ( value->value.timeValue > 0 ) ? 1 : 0;
+ case valueBool:
+ return value->value.boolValue;
+ case valueDouble:
+ return (value->value.doubleValue == 0) ? 0 : 1;
+ case valuePointer:
+ default:
+ return 0;
+ }
+ }
+
+ return 0;
+}
+
+static VariableValue
+makeBoolValue(Template tmpl, int v) {
+ VariableValue outvalue = mcalloc(tmpl->templateContext, sizeof(VariableValueData));
+
+ outvalue->type = valueBool;
+ outvalue->flags= TND_DEFINED;
+ outvalue->value.boolValue = (v) ? 1 : 0;
+ return outvalue;
+}
+
+static VariableValue
+copyValue(Template tmpl, VariableValue in) {
+ VariableValue out= mcalloc(tmpl->templateContext, sizeof(VariableValueData));
+
+ if (in)
+ memcpy(out, in, sizeof(VariableValueData));
+ else {
+ out->type = valueBool; /* something */
+ out->flags = 0;
+ }
+ return out;
+}
+
+static VariableValue
+isDefinedFn(Template tmpl, int n, VariableValue *vals) {
+ return makeBoolValue(tmpl, vals[0]->flags & TND_DEFINED );
+}
+
+static int
+strmblen(char *str) {
+ int len = strlen(str);
+ int totlen = 0, clen;
+
+ mblen(NULL,0); /* reset internal state */
+ while( len > 0 ) {
+ clen = mblen( str, len );
+ str += clen;
+ len -= clen;
+ totlen++;
+ }
+
+ return totlen;
+}
+
+static VariableValue
+LengthFn(Template tmpl, int n, VariableValue *vals) {
+ VariableValue outvalue = NULL;
+
+ outvalue = copyValue( tmpl, NULL );
+ outvalue->type = valueInt;
+
+ if ( vals[0]->type == valueString && vals[0]->value.stringValue &&
+ (vals[0]->flags & TND_DEFINED) ) {
+ outvalue->flags |= TND_DEFINED;
+ outvalue->value.intValue = strmblen( vals[0]->value.stringValue );
+ } else
+ outvalue->flags &= ~TND_DEFINED;
+
+ return outvalue;
+}
+
+static VariableValue
+NotFn(Template tmpl, int n, VariableValue *vals) {
+ return makeBoolValue(tmpl, !isVariable(vals[0]));
+}
+
+static VariableValue
+AndFn(Template tmpl, int n, VariableValue *vals) {
+ return makeBoolValue(tmpl, isVariable(vals[0]) && isVariable(vals[1]) );
+}
+
+static VariableValue
+OrFn(Template tmpl, int n, VariableValue *vals) {
+ return makeBoolValue(tmpl, isVariable(vals[0]) || isVariable(vals[1]) );
+}
+
+static VariableValue
+CondFn(Template tmpl, int n, VariableValue *vals) {
+ return isVariable(vals[0]) ? vals[1] : vals[2];
+}
+
+static VariableValue
+ModFn(Template tmpl, int n, VariableValue *vals) {
+ VariableValue outvalue = copyValue( tmpl, NULL );
+
+ outvalue->type = valueInt;
+
+ if ( (vals[0]->flags & vals[1]->flags & TND_DEFINED) &&
+ vals[0]->type == valueInt && vals[1]->type == valueInt) {
+
+ outvalue->flags |= TND_DEFINED;
+ outvalue->value.intValue = vals[0]->value.intValue % vals[1]->value.intValue;
+ } else
+ outvalue->flags &= ~TND_DEFINED;
+
+ return outvalue;
+}
+
+static VariableValue
+UnaryMinesFn(Template tmpl, int n, VariableValue *vals) {
+ VariableValue outvalue = copyValue( tmpl, vals[0] );
+
+ if (outvalue->type == valueInt)
+ outvalue->value.intValue = -outvalue->value.intValue;
+ else if (outvalue->type == valueDouble)
+ outvalue->value.doubleValue = -outvalue->value.doubleValue;
+ else
+ outvalue->flags &= ~TND_DEFINED;
+
+ return outvalue;
+}
+
+#define ISNUM(v) ( ((v)->type == valueDouble || (v)->type == valueInt) && ((v)->flags & TND_DEFINED) )
+
+#define ARIPHACT(OP) \
+ VariableValue outvalue = copyValue( tmpl, NULL ); \
+ if ( !(ISNUM(vals[0]) && ISNUM(vals[1])) ) { \
+ outvalue->flags &= ~TND_DEFINED; \
+ } else if ( vals[0]->type == valueDouble || vals[1]->type == valueDouble ) { \
+ outvalue->flags |= TND_DEFINED; \
+ outvalue->type = valueDouble; \
+ if ( vals[0]->type == valueDouble ) \
+ outvalue->value.doubleValue = vals[0]->value.doubleValue; \
+ else \
+ outvalue->value.doubleValue = vals[0]->value.intValue; \
+ if ( vals[1]->type == valueDouble ) \
+ outvalue->value.doubleValue OP##= vals[1]->value.doubleValue; \
+ else \
+ outvalue->value.doubleValue OP##= vals[1]->value.intValue; \
+ } else { \
+ outvalue->flags |= TND_DEFINED; \
+ outvalue->type = valueInt; \
+ outvalue->value.intValue = vals[0]->value.intValue OP vals[1]->value.intValue; \
+ }
+
+static VariableValue
+PlusFn(Template tmpl, int n, VariableValue *vals) {
+ ARIPHACT(+)
+ return outvalue;
+}
+
+static VariableValue
+MinesFn(Template tmpl, int n, VariableValue *vals) {
+ ARIPHACT(-)
+ return outvalue;
+}
+
+static VariableValue
+MulFn(Template tmpl, int n, VariableValue *vals) {
+ ARIPHACT(*)
+ return outvalue;
+}
+
+static VariableValue
+DivFn(Template tmpl, int n, VariableValue *vals) {
+ ARIPHACT(/)
+ return outvalue;
+}
+
+#define CMPACT(OP) \
+ VariableValue outvalue = copyValue( tmpl, NULL ); \
+ outvalue->type = valueBool; \
+ if ( !(ISNUM(vals[0]) && ISNUM(vals[1])) ) { \
+ outvalue->flags &= ~TND_DEFINED; \
+ } else if ( vals[0]->type == valueDouble || vals[1]->type == valueDouble ) { \
+ outvalue->flags |= TND_DEFINED; \
+ if ( vals[0]->type == valueDouble && vals[1]->type == valueDouble ) \
+ outvalue->value.boolValue = (vals[0]->value.doubleValue OP vals[1]->value.doubleValue) \
+ ? 1 : 0; \
+ else if ( vals[0]->type == valueDouble ) \
+ outvalue->value.boolValue = (vals[0]->value.doubleValue OP vals[1]->value.intValue) \
+ ? 1 : 0; \
+ else \
+ outvalue->value.boolValue = (vals[0]->value.intValue OP vals[1]->value.doubleValue) \
+ ? 1 : 0; \
+ } else { \
+ outvalue->flags |= TND_DEFINED; \
+ outvalue->value.boolValue = (vals[0]->value.intValue OP vals[1]->value.intValue) ? 1 : 0; \
+ }
+
+static VariableValue
+LtFn(Template tmpl, int n, VariableValue *vals) {
+ CMPACT(<)
+ return outvalue;
+}
+
+static VariableValue
+LeFn(Template tmpl, int n, VariableValue *vals) {
+ CMPACT(<=)
+ return outvalue;
+}
+
+static VariableValue
+EqFn(Template tmpl, int n, VariableValue *vals) {
+ CMPACT(==)
+ return outvalue;
+}
+
+static VariableValue
+GeFn(Template tmpl, int n, VariableValue *vals) {
+ CMPACT(>=)
+ return outvalue;
+}
+
+static VariableValue
+GtFn(Template tmpl, int n, VariableValue *vals) {
+ CMPACT(>)
+ return outvalue;
+}
+
+static VariableValue
+NeFn(Template tmpl, int n, VariableValue *vals) {
+ CMPACT(!=)
+ return outvalue;
+}
+
+static executeFunctionDescData Functions[] = {
+ {"defined", 1, isDefinedFn},
+ {"length", 1, LengthFn},
+ {"+", 2, PlusFn},
+ {"-", 2, MinesFn},
+ {"*", 2, MulFn},
+ {"/", 2, DivFn},
+ {"%", 2, ModFn},
+ {"-", 1, UnaryMinesFn},
+ {"?", 3, CondFn},
+ {"||", 2, OrFn},
+ {"&&", 2, AndFn},
+ {"!", 1, NotFn},
+ {"<", 2, LtFn},
+ {"<=", 2, LeFn},
+ {"==", 2, EqFn},
+ {">=", 2, GeFn},
+ {">", 2, GtFn},
+ {"!=", 2, NeFn},
+ {"<>", 2, NeFn},
+ {NULL, -1, NULL}
+};
+
+
+/*
+ * Initialize functions
+ */
+
#define MAXDEPTH (128)
typedef struct ParseState {
GLCELL_DATA(cell) = chld;
}
break;
- case TextNode:
+ case ExpressionNode: /* any expression node can not include files */
+ case PrintNode:
+ case ConstNode:
case VariableNode:
+ case TextNode:
break;
default:
tlog(TL_CRIT|TL_EXIT, "unknown node type: %d", (*node)->type);
return 0;
}
+static void
+findFunction(Template tmpl, TemplateNode node) {
+ executeFunctionDesc ptr = tmpl->functions;
+
+ tassert(ptr != NULL);
+
+ while(ptr && ptr->name) {
+ if ( node->nodeData.expression.nargs < 0 || node->nodeData.expression.nargs == ptr->nargs ) {
+ if ( strcmp( node->nodeData.expression.functionName, ptr->name ) == 0 ) {
+ node->nodeData.expression.function = ptr;
+ return;
+ }
+ }
+
+ ptr++;
+ }
+ tlog(TL_CRIT|TL_EXIT, "Can not find function named '%s' with %d arguments",
+ node->nodeData.expression.functionName,
+ node->nodeData.expression.nargs);
+}
+
static int
compileTree( Template tmpl, TemplateNode node, TemplateNode loopParentNode ) {
GListCell *cell;
return 1;
break;
case ConditionNode:
- node->nodeData.condition.flags = checkSpecialVariable(
- node->nodeData.condition.flags,
- node->nodeData.condition.varName );
-
- if ( (node->nodeData.condition.flags & TND_GLOBAL) == 0 )
- node->nodeData.condition.varName = qualifyVarname(tmpl, loopParentNode,
- node->nodeData.condition.varName,
- &node->nodeData.condition.varNameLength);
-
- node->nodeData.condition.value = findVariable( tmpl, loopParentNode,
- node->nodeData.condition.flags,
- node->nodeData.condition.varName,
- node->nodeData.condition.varNameLength );
-
+ if ( compileTree(tmpl, node->nodeData.condition.expressionNode, loopParentNode) )
+ return 1;
if ( compileTree(tmpl, node->nodeData.condition.ifNode, loopParentNode) )
return 1;
if ( compileTree(tmpl, node->nodeData.condition.elseNode, loopParentNode) )
node->nodeData.variable.varName,
node->nodeData.variable.varNameLength );
break;
+ case PrintNode:
+ if ( compileTree(tmpl, node->nodeData.print.expressionNode, loopParentNode) )
+ return 1;
+ break;
+ case ExpressionNode:
+ node->nodeData.expression.nargs = GLIST_LENGTH(node->nodeData.expression.argsNode);
+ findFunction(tmpl, node);
+
+ node->nodeData.expression.argsValue = mcalloc(tmpl->templateContext, sizeof(VariableValue) *
+ node->nodeData.expression.nargs );
+
+ GListForeach(cell, node->nodeData.expression.argsNode)
+ if ( compileTree(tmpl, (TemplateNode)GLCELL_DATA(cell), loopParentNode) )
+ return 1;
+ break;
case IncludeNode:
tlog(TL_CRIT|TL_EXIT, "unexpected IncludeNode");
break;
+ case ConstNode:
case TextNode:
break;
default:
}
int
-initTemplate( Template tmpl, MemoryContext *mc, char *basedir, char *filename ) {
+initTemplate( Template tmpl, MemoryContext *mc, executeFunctionDesc functions, char *basedir, char *filename ) {
ParseState state;
int err;
tmpl->templateContext = mc;
SFSInit_dp(&tmpl->variables, sizeof(void*), NULL);
+ if ( functions ) {
+ executeFunctionDesc ptr = functions;
+ int n=0;
+
+ while(ptr->name)
+ ptr++;
+
+ n = ptr - functions;
+ tmpl->functions = mcalloc(tmpl->templateContext,
+ sizeof(executeFunctionDescData) * n + sizeof(Functions));
+
+ memcpy( tmpl->functions, functions, sizeof(executeFunctionDescData) * n );
+ memcpy( tmpl->functions + n, Functions, sizeof(Functions));
+ } else
+ tmpl->functions = Functions;
+
if ( (err=recursiveReadTemplate(&state, NULL, filename))!=0 )
return err;
if ( (err=compileTree( tmpl, tmpl->tree, NULL ))!=0 )
return 0;
}
+/*
+ * Reset/cleanup
+ */
+
void
resetTemplate( Template tmpl ) {
SFSDataIO out;
GListFree( node->nodeData.children );
break;
case ConditionNode:
+ freeNode( node->nodeData.condition.expressionNode );
freeNode( node->nodeData.condition.ifNode );
freeNode( node->nodeData.condition.elseNode );
break;
- case IncludeNode:
+ case PrintNode:
+ freeNode( node->nodeData.print.expressionNode);
+ break;
+ case ExpressionNode:
+ GListForeach(cell, node->nodeData.expression.argsNode)
+ freeNode( GLCELL_DATA(cell) );
+ GListFree( node->nodeData.expression.argsNode );
+ break;
case VariableNode:
+ case IncludeNode:
case TextNode:
+ case ConstNode:
default:
break;
}
freeNode( tmpl->tree );
}
+/*
+ * Set value routines
+ */
+
static void
newLoopInstance( Template tmpl, TemplateNode node ) {
node->nodeData.loop.listInstance = GListPush(
return setTemplateValue( tmpl, key );
}
+/*
+ * output routines
+ */
+
static char *
printVal( Template tmpl, VariableValue value, int *len, char *format ) {
int printedlen;
return res;
}
-static int
-isVariable(VariableValue value, int flags) {
- if ( value == NULL )
- return 0;
- if ( flags & TND_DEFINED ) {
- return (value->flags & TND_DEFINED);
- } else {
- switch (value->type) {
- case valueInt:
- return value->value.intValue;
- case valueString:
- if ( value->value.stringValue == NULL || *value->value.stringValue == '\0' )
- return 0;
- return 1;
- case valueTime:
- return ( value->value.timeValue > 0 ) ? 1 : 0;
- case valueBool:
- return value->value.boolValue;
- case valueDouble:
- return (value->value.doubleValue == 0) ? 0 : 1;
- case valuePointer:
- default:
- return 0;
- }
+static VariableValue
+executeExpression( Template tmpl, TemplateNode node ) {
+ VariableValue outvalue = NULL;
+ GListCell *cell;
+ int i = 0;
+
+
+ switch (node->type) {
+ case ConstNode:
+ outvalue = &node->nodeData.value;
+ break;
+ case VariableNode:
+ if ( node->nodeData.variable.value->type == valuePointer )
+ outvalue = node->nodeData.variable.value->value.ptrValue;
+ else
+ outvalue = node->nodeData.variable.value;
+ break;
+ case ExpressionNode:
+ GListForeach(cell, node->nodeData.expression.argsNode)
+ node->nodeData.expression.argsValue[i++] =
+ executeExpression( tmpl, (TemplateNode)GLCELL_DATA(cell) );
+
+ outvalue = node->nodeData.expression.function->execFn(tmpl,
+ node->nodeData.expression.nargs,
+ node->nodeData.expression.argsValue);
+ break;
+ case TextNode:
+ case IncludeNode:
+ case LoopNode:
+ case ConditionNode:
+ case CollectionNode:
+ case PrintNode:
+ tlog(TL_CRIT|TL_EXIT, "Unexpected node type: %d", node->type);
+ break;
+ default:
+ tlog(TL_CRIT|TL_EXIT, "Unknown node type: %d", node->type);
+ break;
}
- return 0;
+ tassert( outvalue!=NULL );
+
+ return outvalue;
}
static void
}
break;
case ConditionNode:
- value = node->nodeData.condition.value;
- if ( value->type == valuePointer )
- value = value->value.ptrValue;
-
- if ( node->nodeData.condition.flags & TND_NOT ) {
- if ( isVariable(value, node->nodeData.condition.flags) )
- printNode( tmpl, node->nodeData.condition.elseNode );
- else
- printNode( tmpl, node->nodeData.condition.ifNode );
- } else {
- if ( isVariable(value, node->nodeData.condition.flags) )
- printNode( tmpl, node->nodeData.condition.ifNode );
- else
- printNode( tmpl, node->nodeData.condition.elseNode );
- }
+ value = executeExpression( tmpl, node->nodeData.condition.expressionNode );
+
+ if ( isVariable(value) )
+ printNode( tmpl, node->nodeData.condition.ifNode );
+ else
+ printNode( tmpl, node->nodeData.condition.elseNode );
break;
case CollectionNode:
GListForeach( cell, node->nodeData.children )
printNode( tmpl, (TemplateNode)GLCELL_DATA(cell) );
break;
- case VariableNode:
- value = node->nodeData.variable.value;
- if ( value->type == valuePointer )
- value = value->value.ptrValue;
+ case PrintNode:
+ value = executeExpression( tmpl, node->nodeData.condition.expressionNode );
if ( value && (value->flags & TND_DEFINED) != 0 ) {
int len;
char *res;
- res = printVal(tmpl, value, &len, node->nodeData.variable.formatValue);
+ res = printVal(tmpl, value, &len, node->nodeData.print.formatValue);
if ( (node->nodeData.variable.flags & TND_HTMLESCAPE) && tmpl->htmlEscape )
res = tmpl->htmlEscape(res, &len);
tmpl->printString( res, len );
mcfree(res);
}
- } else if ( node->nodeData.variable.defaultValue ) {
- tmpl->printString( node->nodeData.variable.defaultValue,
- strlen( node->nodeData.variable.defaultValue ) );
+ } else if ( node->nodeData.print.defaultValue ) {
+ tmpl->printString( node->nodeData.print.defaultValue,
+ strlen( node->nodeData.print.defaultValue ) );
}
break;
case TextNode:
tmpl->printString( node->nodeData.text.value, node->nodeData.text.valueLength );
break;
case IncludeNode:
+ case VariableNode:
+ case ConstNode:
+ case ExpressionNode:
+ tlog(TL_CRIT|TL_EXIT, "Unexpected node type: %d", node->type);
+ break;
default:
+ tlog(TL_CRIT|TL_EXIT, "Unknown node type: %d", node->type);
break;
}
}
return 0;
}
+static
+void printLevel(int level) {
+ while(level-- > 0 )
+ fputs(" ", stdout);
+}
static void
recursiveDump(Template tmpl, TemplateNode node, int level) {
GListCell *cell;
+ printLevel(level);
if (node == NULL ) {
- printf("%d void\n", level);
+ printf("VOID\n");
return;
}
switch(node->type) {
case IncludeNode:
- printf("%d IncludeNode\n", level);
+ printf("IncludeNode\n");
break;
case LoopNode:
- printf("%d LoopNode\n", level);
+ printf("LoopNode '%s'\n", node->nodeData.loop.varName);
recursiveDump(tmpl, node->nodeData.loop.bodyNode, level+1);
break;
case ConditionNode:
- printf("%d ConditionNode\n", level);
+ printf("ConditionNode\n");
+ recursiveDump(tmpl, node->nodeData.condition.expressionNode, level+1);
recursiveDump(tmpl, node->nodeData.condition.ifNode, level+1);
recursiveDump(tmpl, node->nodeData.condition.elseNode, level+1);
break;
case CollectionNode:
- printf("%d CollectionNode\n", level);
+ printf("CollectionNode\n");
GListForeach(cell, node->nodeData.children)
recursiveDump(tmpl, (TemplateNode)GLCELL_DATA(cell), level+1);
break;
case TextNode:
- printf("%d TextNode len:%d\n", level, node->nodeData.text.valueLength);
+ printf("TextNode len:%d\n", node->nodeData.text.valueLength);
break;
case VariableNode:
- printf("%d VariableNode '%s'\n", level, node->nodeData.variable.varName);
+ printf("VariableNode '%s'\n", node->nodeData.variable.varName);
+ break;
+ case ExpressionNode:
+ printf("ExpressionNode '%s'\n", node->nodeData.expression.functionName);
+ GListForeach(cell, node->nodeData.expression.argsNode)
+ recursiveDump( tmpl, GLCELL_DATA(cell) ,level + 1);
+ break;
+ case PrintNode:
+ printf("PrintNode\n");
+ recursiveDump( tmpl, node->nodeData.print.expressionNode, level + 1 );
+ break;
+ case ConstNode:
+ printf("ConstNode\n");
break;
default:
tlog(TL_CRIT|TL_EXIT, "unknown node type: %d", node->type);