static blocktype
parse_block_type(void)
{
char new_file_token_str[256];
blocktype block_type;
// Parse the file token string as a name.
if (!parse_name(file_token_str, new_file_token_str, false))
expected_token("a valid block type");
// Now verify it's a valid block type.
if (!stricmp(new_file_token_str, "structural"))
block_type = STRUCTURAL_BLOCK;
else if (!stricmp(new_file_token_str, "multifaceted sprite"))
block_type = MULTIFACETED_SPRITE;
else if (!stricmp(new_file_token_str, "angled sprite"))
block_type = ANGLED_SPRITE;
else if (!stricmp(new_file_token_str, "revolving sprite"))
block_type = REVOLVING_SPRITE;
else if (!stricmp(new_file_token_str, "facing sprite"))
block_type = FACING_SPRITE;
else if (!stricmp(new_file_token_str, "player sprite"))
block_type = PLAYER_SPRITE;
else
expected_token("block type 'structural', 'multifaceted sprite', "
"'angled sprite', 'revolving sprite', 'facing sprite' or "
"'player sprite'");
return(block_type);
}
static char
parse_char()
{
if (strlen(file_token_str) != 1)
expected_token("a single-character string");
return(*file_token_str);
}
static bool
parse_bool()
{
bool value;
start_parsing_value();
if (token_in_value_is("yes"))
value = true;
else if (token_in_value_is("no"))
value = false;
else
expected_token("boolean 'yes' or 'no'");
stop_parsing_value();
return(value);
}
static texstyle
parse_texture_style(void)
{
texstyle style;
start_parsing_value();
if (token_in_value_is("tiled"))
style = TILED_TEXTURE;
else if (token_in_value_is("scaled"))
style = SCALED_TEXTURE;
else if (token_in_value_is("stretched"))
style = STRETCHED_TEXTURE;
else
expected_token("texture style 'tiled', 'scaled' or 'stretched'");
stop_parsing_value();
return(style);
}
// Read a stream a line at a time, and parse it to fill out the print mask,
// header, group_by, where expression, and projection attributes.
//
int SetAttrListPrintMaskFromStream (
SimpleInputStream & stream, // in: fetch lines from this stream until nextline() returns NULL
const CustomFormatFnTable & FnTable, // in: table of custom output functions for SELECT
AttrListPrintMask & mask, // out: columns and headers set in SELECT
printmask_headerfooter_t & headfoot, // out: header and footer flags set in SELECT or SUMMARY
printmask_aggregation_t & aggregate, // out: aggregation mode in SELECT
std::vector<GroupByKeyInfo> & group_by, // out: ordered set of attributes/expressions in GROUP BY
std::string & where_expression, // out: classad expression from WHERE
StringList & attrs, // out ClassAd attributes referenced in mask or group_by outputs
std::string & error_message) // out, if return is non-zero, this will be an error message
{
ClassAd ad; // so we can GetExprReferences
enum section_t { NOWHERE=0, SELECT, SUMMARY, WHERE, GROUP};
enum cust_t { PRINTAS_STRING, PRINTAS_INT, PRINTAS_FLOAT };
bool label_fields = false;
const char * labelsep = " = ";
const char * prowpre = NULL;
const char * pcolpre = " ";
const char * pcolsux = NULL;
const char * prowsux = "\n";
mask.SetAutoSep(prowpre, pcolpre, pcolsux, prowsux);
error_message.clear();
aggregate = PR_NO_AGGREGATION;
printmask_headerfooter_t usingHeadFoot = (printmask_headerfooter_t)(HF_CUSTOM | HF_NOSUMMARY);
section_t sect = SELECT;
tokener toke("");
while (toke.set(stream.nextline())) {
if ( ! toke.next())
continue;
if (toke.matches("#")) continue;
if (toke.matches("SELECT")) {
while (toke.next()) {
if (toke.matches("FROM")) {
if (toke.next()) {
if (toke.matches("AUTOCLUSTER")) {
aggregate = PR_FROM_AUTOCLUSTER;
} else {
std::string aa; toke.copy_token(aa);
formatstr_cat(error_message, "Warning: Unknown header argument %s for SELECT FROM\n", aa.c_str());
}
}
} else if (toke.matches("UNIQUE")) {
aggregate = PR_COUNT_UNIQUE;
} else if (toke.matches("BARE")) {
usingHeadFoot = HF_BARE;
} else if (toke.matches("NOTITLE")) {
usingHeadFoot = (printmask_headerfooter_t)(usingHeadFoot | HF_NOTITLE);
} else if (toke.matches("NOHEADER")) {
usingHeadFoot = (printmask_headerfooter_t)(usingHeadFoot | HF_NOHEADER);
} else if (toke.matches("NOSUMMARY")) {
usingHeadFoot = (printmask_headerfooter_t)(usingHeadFoot | HF_NOSUMMARY);
} else if (toke.matches("LABEL")) {
label_fields = true;
} else if (label_fields && toke.matches("SEPARATOR")) {
if (toke.next()) { std::string tmp; toke.copy_token(tmp); collapse_escapes(tmp); labelsep = mask.store(tmp.c_str()); }
} else if (toke.matches("RECORDPREFIX")) {
if (toke.next()) { std::string tmp; toke.copy_token(tmp); collapse_escapes(tmp); prowpre = mask.store(tmp.c_str()); }
} else if (toke.matches("RECORDSUFFIX")) {
if (toke.next()) { std::string tmp; toke.copy_token(tmp); collapse_escapes(tmp); prowsux = mask.store(tmp.c_str()); }
} else if (toke.matches("FIELDPREFIX")) {
if (toke.next()) { std::string tmp; toke.copy_token(tmp); collapse_escapes(tmp); pcolpre = mask.store(tmp.c_str()); }
} else if (toke.matches("FIELDSUFFIX")) {
if (toke.next()) { std::string tmp; toke.copy_token(tmp); collapse_escapes(tmp); pcolsux = mask.store(tmp.c_str()); }
} else {
std::string aa; toke.copy_token(aa);
formatstr_cat(error_message, "Warning: Unknown header argument %s for SELECT\n", aa.c_str());
}
}
mask.SetAutoSep(prowpre, pcolpre, pcolsux, prowsux);
sect = SELECT;
continue;
} else if (toke.matches("WHERE")) {
sect = WHERE;
if ( ! toke.next()) continue;
} else if (toke.matches("GROUP")) {
sect = GROUP;
if ( ! toke.next() || (toke.matches("BY") && ! toke.next())) continue;
} else if (toke.matches("SUMMARY")) {
usingHeadFoot = (printmask_headerfooter_t)(usingHeadFoot & ~HF_NOSUMMARY);
while (toke.next()) {
if (toke.matches("STANDARD")) {
// attrs.insert(ATTR_JOB_STATUS);
} else if (toke.matches("NONE")) {
usingHeadFoot = (printmask_headerfooter_t)(usingHeadFoot | HF_NOSUMMARY);
} else {
std::string aa; toke.copy_token(aa);
formatstr_cat(error_message, "Unknown argument %s for SELECT\n", aa.c_str());
}
}
sect = SUMMARY;
continue;
}
switch (sect) {
case SELECT: {
toke.mark();
std::string attr;
std::string name;
int opts = FormatOptionAutoWidth | FormatOptionNoTruncate;
const char * fmt = "%v";
int wid = 0;
CustomFormatFn cust;
bool got_attr = false;
while (toke.next()) {
const Keyword * pkw = SelectKeywords.find_match(toke);
if ( ! pkw)
continue;
// next token is a keyword, if we havent set the attribute yet
// it's everything up to the current token.
int kw = pkw->value;
if ( ! got_attr) {
toke.copy_marked(attr);
got_attr = true;
}
switch (kw) {
case kw_AS: {
if (toke.next()) {
toke.copy_token(name);
if (toke.is_quoted_string()) { collapse_escapes(name); }
} else {
expected_token(error_message, "column name after AS", "SELECT", stream, toke);
}
toke.mark_after();
} break;
case kw_PRINTF: {
if (toke.next()) {
std::string val; toke.copy_token(val);
fmt = mask.store(val.c_str());
} else {
expected_token(error_message, "format after PRINTF", "SELECT", stream, toke);
}
} break;
case kw_PRINTAS: {
if (toke.next()) {
const CustomFormatFnTableItem * pcffi = FnTable.find_match(toke);
if (pcffi) {
cust = pcffi->cust;
//cust_type = pcffi->cust;
const char * pszz = pcffi->extra_attribs;
if (pszz) {
size_t cch = strlen(pszz);
while (cch > 0) { attrs.insert(pszz); pszz += cch+1; cch = strlen(pszz); }
}
} else {
std::string aa; toke.copy_token(aa);
formatstr_cat(error_message, "Unknown argument %s for PRINTAS\n", aa.c_str());
}
} else {
expected_token(error_message, "function name after PRINTAS", "SELECT", stream, toke);
}
} break;
case kw_NOSUFFIX: {
opts |= FormatOptionNoSuffix;
} break;
case kw_NOPREFIX: {
opts |= FormatOptionNoPrefix;
} break;
case kw_LEFT: {
opts |= FormatOptionLeftAlign;
} break;
case kw_RIGHT: {
opts &= ~FormatOptionLeftAlign;
} break;
case kw_TRUNCATE: {
opts &= ~FormatOptionNoTruncate;
} break;
case kw_WIDTH: {
if (toke.next()) {
std::string val; toke.copy_token(val);
if (toke.matches("AUTO")) {
opts |= FormatOptionAutoWidth;
} else {
wid = atoi(val.c_str());
//if (wid) opts &= ~FormatOptionAutoWidth;
//PRAGMA_REMIND("TJ: decide how LEFT & RIGHT interact with pos and neg widths."
}
} else {
expected_token(error_message, "number or AUTO after WIDTH", "SELECT", stream, toke);
}
} break;
default:
unexpected_token(error_message, "SELECT", stream, toke);
break;
} // switch
} // while
if ( ! got_attr) { attr = toke.content(); }
trim(attr);
if (attr.empty() || attr[0] == '#') continue;
const char * lbl = name.empty() ? attr.c_str() : name.c_str();
if (label_fields) {
// build a format string that contains the label
std::string label(lbl);
if (labelsep) { label += labelsep; }
if (fmt) { label += fmt; }
else {
label += "%";
if (wid) {
if (opts & FormatOptionNoTruncate)
formatstr_cat(label, "%d", wid);
else
formatstr_cat(label, "%d.%d", wid, wid < 0 ? -wid : wid);
}
label += cust ? "s" : "v";
}
lbl = mask.store(label.c_str());
fmt = lbl;
wid = 0;
} else {
if ( ! wid) { wid = 0 - (int)strlen(lbl); }
mask.set_heading(lbl);
lbl = NULL;
}
if (cust) {
mask.registerFormat (lbl, wid, opts, cust, attr.c_str());
} else {
mask.registerFormat(fmt, wid, opts, attr.c_str());
}
ad.GetExprReferences(attr.c_str(), NULL, &attrs);
}
break;
case WHERE: {
toke.copy_to_end(where_expression);
trim(where_expression);
}
break;
case SUMMARY: {
}
break;
case GROUP: {
toke.mark();
GroupByKeyInfo key;
// in case we end up finding no keywords, copy the remainder of the line now as the expression
toke.copy_to_end(key.expr);
bool got_expr = false;
while (toke.next()) {
const Keyword * pgw = GroupKeywords.find_match(toke);
if ( ! pgw)
continue;
// got a keyword
int gw = pgw->value;
if ( ! got_expr) {
toke.copy_marked(key.expr);
got_expr = true;
}
switch (gw) {
case gw_AS: {
if (toke.next()) { toke.copy_token(key.name); }
toke.mark_after();
} break;
case gw_DECENDING: {
key.decending = true;
toke.mark_after();
} break;
case gw_ASCENDING: {
key.decending = false;
toke.mark_after();
} break;
default:
unexpected_token(error_message, "GROUP BY", stream, toke);
break;
} // switch
} // while toke.next
trim(key.expr);
if (key.expr.empty() || key.expr[0] == '#')
continue;
if ( ! ad.GetExprReferences(key.expr.c_str(), NULL, &attrs)) {
formatstr_cat(error_message, "GROUP BY expression is not valid: %s\n", key.expr.c_str());
} else {
group_by.push_back(key);
}
}
break;
default:
break;
}
}
headfoot = usingHeadFoot;
return 0;
}
void
parse_param_list(token tag_name, param *param_list, token end_token)
{
param *param_ptr;
int param_index;
char old_name[256];
// Initialise the parameter list.
init_param_list();
// Parse the parameter list.
while ((param_ptr = parse_next_param(param_list)) != NULL) {
switch (param_ptr->value_type) {
case VALUE_BLOCK_NAME:
parse_string(old_name, 256);
if (!parse_name(old_name, (char *)param_ptr->variable_ptr, false))
file_error("Expected a valid block name rather than '%s'",
old_name);
break;
case VALUE_BLOCK_TYPE:
*(blocktype *)param_ptr->variable_ptr = parse_block_type();
break;
case VALUE_BOOL:
*(bool *)param_ptr->variable_ptr = parse_bool();
break;
case VALUE_CHAR:
*(char *)param_ptr->variable_ptr = parse_char();
break;
case VALUE_DEGREES:
*(double *)param_ptr->variable_ptr = parse_degrees();
break;
case VALUE_DOUBLE:
*(double *)param_ptr->variable_ptr = parse_double();
break;
case VALUE_INTEGER:
*(int *)param_ptr->variable_ptr = parse_integer();
break;
case VALUE_PART_NAME:
parse_string(old_name, 256);
if (!parse_name(old_name, (char *)param_ptr->variable_ptr, false))
file_error("Expected a valid part name rather than '%s'",
old_name);
break;
case VALUE_PERCENTAGE:
*(double *)param_ptr->variable_ptr = parse_percentage();
break;
case VALUE_REF_LIST:
parse_ref_list((ref_list *)param_ptr->variable_ptr);
break;
case VALUE_RGB:
*(RGBcolour *)param_ptr->variable_ptr = parse_RGB();
break;
case VALUE_STRING:
parse_string((char *)param_ptr->variable_ptr, 256);
break;
case VALUE_TEXCOORDS_LIST:
parse_texcoords_list((texcoords_list *)param_ptr->variable_ptr);
break;
case VALUE_TEXTURE_STYLE:
*(texstyle *)param_ptr->variable_ptr = parse_texture_style();
break;
case VALUE_VERTEX_COORDS:
*(vertex *)param_ptr->variable_ptr = parse_vertex_coordinates();
break;
default:
file_error("internal error--unrecognised parameter value type");
}
}
// If an end_token was specified, then verify that the end token parsed
// matches it.
if (end_token != TOKEN_NONE && file_token != end_token)
expected_token(get_token_str(end_token));
// If there was a parameter list, verify that all required parameters were
// parsed.
if (param_list) {
param_index = 0;
while (param_list[param_index].param_name != TOKEN_NONE) {
if (param_list[param_index].required &&
!matched_param[param_index])
file_error("parameter '%s' is missing from tag '%s'",
get_token_str(param_list[param_index].param_name),
get_token_str(tag_name));
param_index++;
}
}
}
param *
parse_next_param(param *param_list)
{
token param_name;
char param_name_str[256];
int param_index;
// Parse the next valid parameter, skipping over invalid parameters.
while (true) {
// If the next token is ">" or "/>" then there are no more parameters
// to parse, so break out of the loop.
read_next_file_token();
if (file_token == TOKEN_CLOSE_TAG ||
file_token == TOKEN_CLOSE_SINGLE_TAG)
break;
// If the token is a string token, this is an error. Otherwise store
// it as the parameter token.
if (file_token == VALUE_STRING)
expected_token("a parameter name");
param_name = file_token;
strcpy(param_name_str, file_token_str);
// Parse the equal sign and the parameter value, which must be a
// string value.
match_next_file_token(TOKEN_EQUAL);
read_next_file_token();
if (file_token != VALUE_STRING)
expected_token("a string as a parameter value");
// If the parameter token was unknown or there is no parameter list,
// skip over this parameter.
if (param_name == TOKEN_UNKNOWN || param_list == NULL)
continue;
// Compare the parameter name against the entries in the parameter list;
// if we find a match that hasn't been matched before, return the index
// of that parameter entry. Otherwise ignore this parameter and parse
// the next.
param_index = 0;
while (param_list[param_index].param_name != TOKEN_NONE) {
if (param_name == param_list[param_index].param_name &&
!matched_param[param_index]) {
matched_param[param_index] = true;
return(¶m_list[param_index]);
}
param_index++;
}
}
// Return a NULL pointer if the end of the parameter list was encountered.
return(NULL);
}
