libidav/davqlexec.h

Sun, 01 Jul 2018 17:14:17 +0200

author
Mike Becker <universe@uap-core.de>
date
Sun, 01 Jul 2018 17:14:17 +0200
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child 747
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permissions
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adds brief command descriptions to the dav man page

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2018 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28 #ifndef DAVQLEXEC_H
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29 #define DAVQLEXEC_H
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30
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31 #include <stdarg.h>
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32 #include "davqlparser.h"
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33 #include "webdav.h"
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34
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35 #include <ucx/buffer.h>
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36
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37 #ifdef __cplusplus
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38 extern "C" {
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39 #endif
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40
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41 typedef struct DavQLCmd DavQLCmd;
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42 typedef struct DavQLStackObj DavQLStackObj;
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43 typedef struct DavQLRes DavQLRes;
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44
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45 typedef struct DavQLArg DavQLArg;
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46 typedef struct DavQLArgList DavQLArgList;
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47
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48 typedef void*(*davql_func)(); // TODO: interface?
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49
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50 struct DavQLArg {
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51 int type;
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52 union DavQLArgValue{
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53 int d;
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54 unsigned int u;
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55 char *s;
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56 time_t t;
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57 } value;
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58 DavQLArg *next;
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59 };
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60
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61 struct DavQLArgList {
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62 DavQLArg *first;
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63 DavQLArg *current;
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64 };
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65
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66 typedef enum {
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67 DAVQL_OK = 0,
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68 DAVQL_UNSUPPORTED_FORMATCHAR,
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69 DAVQL_UNKNOWN_FORMATCHAR
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70 } davqlerror_t;
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71
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72 typedef enum {
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73 DAVQL_CMD_INT = 0,
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74 DAVQL_CMD_STRING,
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75 DAVQL_CMD_TIMESTAMP,
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76 DAVQL_CMD_RES_IDENTIFIER,
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77 DAVQL_CMD_PROP_IDENTIFIER,
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78 //DAVQL_CMD_OP_UNARY_ADD,
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79 DAVQL_CMD_OP_UNARY_SUB,
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80 DAVQL_CMD_OP_UNARY_NEG,
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81 DAVQL_CMD_OP_BINARY_ADD,
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82 DAVQL_CMD_OP_BINARY_SUB,
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83 DAVQL_CMD_OP_BINARY_MUL,
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84 DAVQL_CMD_OP_BINARY_DIV,
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85 DAVQL_CMD_OP_BINARY_AND,
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86 DAVQL_CMD_OP_BINARY_OR,
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87 DAVQL_CMD_OP_BINARY_XOR,
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88 DAVQL_CMD_OP_LOGICAL_NOT,
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89 DAVQL_CMD_OP_LOGICAL_AND,
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90 DAVQL_CMD_OP_LOGICAL_OR_L,
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91 DAVQL_CMD_OP_LOGICAL_OR,
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92 DAVQL_CMD_OP_LOGICAL_XOR,
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93 DAVQL_CMD_OP_EQ,
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94 DAVQL_CMD_OP_NEQ,
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95 DAVQL_CMD_OP_LT,
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96 DAVQL_CMD_OP_GT,
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97 DAVQL_CMD_OP_LE,
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98 DAVQL_CMD_OP_GE,
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99 DAVQL_CMD_OP_LIKE,
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100 DAVQL_CMD_OP_UNLIKE,
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101 DAVQL_CMD_CALL
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102 } davqlcmdtype_t;
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103
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104 typedef enum {
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105 DAVQL_RES_NAME = 0,
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106 DAVQL_RES_PATH,
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107 DAVQL_RES_HREF,
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108 DAVQL_RES_CONTENTLENGTH,
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109 DAVQL_RES_CONTENTTYPE,
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110 DAVQL_RES_CREATIONDATE,
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111 DAVQL_RES_LASTMODIFIED,
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112 DAVQL_RES_ISCOLLECTION
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113 } davqlresprop_t;
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114
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115 struct DavQLCmd {
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116 davqlcmdtype_t type;
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117 union DavQLCmdData {
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118 int64_t integer;
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119 sstr_t string;
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120 time_t timestamp;
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121 davqlresprop_t resprop;
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122 DavPropName property;
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123 davql_func func;
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124 } data;
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125 };
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126
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127 struct DavQLStackObj {
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128 int32_t type; // 0: int, 1: string, 2: xml
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129 uint32_t length;
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130 union DavQLStackData {
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131 int64_t integer;
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132 char *string;
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133 DavXmlNode *node;
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134 } data;
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135 };
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136
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137 struct DavQLRes {
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138 DavResource *resource;
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139 int depth;
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140 };
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141
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142 typedef struct DavCompiledField {
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143 char *ns;
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144 char *name;
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145 UcxBuffer *code;
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146 } DavCompiledField;
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147
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148 typedef struct DavOrderCriterion {
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149 int type; // 0: resprop, 1: property
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150 union DavQLColumn {
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151 davqlresprop_t resprop;
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152 UcxKey property;
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153 } column;
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154 _Bool descending;
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155 } DavOrderCriterion;
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156
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157 DavQLArgList* dav_ql_get_args(DavQLStatement *st, va_list ap);
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158 void dav_ql_free_arglist(DavQLArgList *args);
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159
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160 int dav_ql_getarg_int(DavQLArgList *args);
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161 unsigned int dav_ql_getarg_uint(DavQLArgList *args);
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162 char* dav_ql_getarg_str(DavQLArgList *args);
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163 time_t dav_ql_getarg_time(DavQLArgList *args);
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164
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165 DavResult dav_statement_exec(DavSession *sn, DavQLStatement *st, ...);
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166 DavResult dav_statement_execv(DavSession *sn, DavQLStatement *st, va_list ap);
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167
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168 UcxBuffer* dav_path_string(sstr_t src, DavQLArgList *args, davqlerror_t *error);
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169 sstr_t dav_format_string(UcxAllocator *a, sstr_t fstr, DavQLArgList *ap, davqlerror_t *error);
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170
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171 DavResult dav_exec_select(DavSession *sn, DavQLStatement *st, va_list ap);
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172
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173 int dav_identifier2resprop(sstr_t src, davqlresprop_t *prop);
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174
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175 UcxBuffer* dav_compile_expr(DavContext *ctx, UcxAllocator *a, DavQLExpression *lexpr, DavQLArgList *ap);
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176
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177 int dav_exec_expr(UcxBuffer *bcode, DavResource *res, DavQLStackObj *result);
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178
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179
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181 #ifdef __cplusplus
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182 }
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183 #endif
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184
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185 #endif /* DAVQLEXEC_H */
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186

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