--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/libidav/davqlexec.h Mon Jan 22 17:27:47 2024 +0100
@@ -0,0 +1,187 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2018 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. 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 HOLDER 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.
+ */
+#ifndef DAVQLEXEC_H
+#define DAVQLEXEC_H
+
+#include <stdarg.h>
+#include "davqlparser.h"
+#include "webdav.h"
+
+#include <cx/buffer.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct DavQLCmd DavQLCmd;
+typedef struct DavQLStackObj DavQLStackObj;
+typedef struct DavQLRes DavQLRes;
+
+typedef struct DavQLArg DavQLArg;
+typedef struct DavQLArgList DavQLArgList;
+
+typedef void*(*davql_func)(); // TODO: interface?
+
+struct DavQLArg {
+ int type;
+ union DavQLArgValue{
+ int d;
+ unsigned int u;
+ char *s;
+ time_t t;
+ } value;
+ DavQLArg *next;
+};
+
+struct DavQLArgList {
+ DavQLArg *first;
+ DavQLArg *current;
+};
+
+typedef enum {
+ DAVQL_OK = 0,
+ DAVQL_UNSUPPORTED_FORMATCHAR,
+ DAVQL_UNKNOWN_FORMATCHAR,
+ DAVQL_OOM
+} davqlerror_t;
+
+typedef enum {
+ DAVQL_CMD_INT = 0,
+ DAVQL_CMD_STRING,
+ DAVQL_CMD_TIMESTAMP,
+ DAVQL_CMD_RES_IDENTIFIER,
+ DAVQL_CMD_PROP_IDENTIFIER,
+ //DAVQL_CMD_OP_UNARY_ADD,
+ DAVQL_CMD_OP_UNARY_SUB,
+ DAVQL_CMD_OP_UNARY_NEG,
+ DAVQL_CMD_OP_BINARY_ADD,
+ DAVQL_CMD_OP_BINARY_SUB,
+ DAVQL_CMD_OP_BINARY_MUL,
+ DAVQL_CMD_OP_BINARY_DIV,
+ DAVQL_CMD_OP_BINARY_AND,
+ DAVQL_CMD_OP_BINARY_OR,
+ DAVQL_CMD_OP_BINARY_XOR,
+ DAVQL_CMD_OP_LOGICAL_NOT,
+ DAVQL_CMD_OP_LOGICAL_AND,
+ DAVQL_CMD_OP_LOGICAL_OR_L,
+ DAVQL_CMD_OP_LOGICAL_OR,
+ DAVQL_CMD_OP_LOGICAL_XOR,
+ DAVQL_CMD_OP_EQ,
+ DAVQL_CMD_OP_NEQ,
+ DAVQL_CMD_OP_LT,
+ DAVQL_CMD_OP_GT,
+ DAVQL_CMD_OP_LE,
+ DAVQL_CMD_OP_GE,
+ DAVQL_CMD_OP_LIKE,
+ DAVQL_CMD_OP_UNLIKE,
+ DAVQL_CMD_CALL
+} davqlcmdtype_t;
+
+typedef enum {
+ DAVQL_RES_NAME = 0,
+ DAVQL_RES_PATH,
+ DAVQL_RES_HREF,
+ DAVQL_RES_CONTENTLENGTH,
+ DAVQL_RES_CONTENTTYPE,
+ DAVQL_RES_CREATIONDATE,
+ DAVQL_RES_LASTMODIFIED,
+ DAVQL_RES_ISCOLLECTION
+} davqlresprop_t;
+
+struct DavQLCmd {
+ davqlcmdtype_t type;
+ union DavQLCmdData {
+ int64_t integer;
+ cxmutstr string;
+ time_t timestamp;
+ davqlresprop_t resprop;
+ DavPropName property;
+ davql_func func;
+ } data;
+};
+
+struct DavQLStackObj {
+ int32_t type; // 0: int, 1: string, 2: xml
+ uint32_t length;
+ union DavQLStackData {
+ int64_t integer;
+ char *string;
+ DavXmlNode *node;
+ } data;
+};
+
+struct DavQLRes {
+ DavResource *resource;
+ int depth;
+};
+
+typedef struct DavCompiledField {
+ char *ns;
+ char *name;
+ CxBuffer *code;
+} DavCompiledField;
+
+typedef struct DavOrderCriterion {
+ int type; // 0: resprop, 1: property
+ union DavQLColumn {
+ davqlresprop_t resprop;
+ CxHashKey property;
+ } column;
+ _Bool descending;
+} DavOrderCriterion;
+
+DavQLArgList* dav_ql_get_args(DavQLStatement *st, va_list ap);
+void dav_ql_free_arglist(DavQLArgList *args);
+
+int dav_ql_getarg_int(DavQLArgList *args);
+unsigned int dav_ql_getarg_uint(DavQLArgList *args);
+char* dav_ql_getarg_str(DavQLArgList *args);
+time_t dav_ql_getarg_time(DavQLArgList *args);
+
+DavResult dav_statement_exec(DavSession *sn, DavQLStatement *st, ...);
+DavResult dav_statement_execv(DavSession *sn, DavQLStatement *st, va_list ap);
+
+CxBuffer* dav_path_string(cxmutstr src, DavQLArgList *args, davqlerror_t *error);
+cxmutstr dav_format_string(const CxAllocator *a, cxstring fstr, DavQLArgList *ap, davqlerror_t *error);
+
+DavResult dav_exec_select(DavSession *sn, DavQLStatement *st, va_list ap);
+
+int dav_identifier2resprop(cxstring src, davqlresprop_t *prop);
+
+CxBuffer* dav_compile_expr(DavContext *ctx, const CxAllocator *a, DavQLExpression *lexpr, DavQLArgList *ap);
+
+int dav_exec_expr(CxBuffer *bcode, DavResource *res, DavQLStackObj *result);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* DAVQLEXEC_H */
+