void PRawRows::observeJoinLine(size_t r)
{
emit joinLine(r);
}
/*
Convert an ESP web page into C code
Directives:
<%@ include "file" Include an esp file
<%@ layout "file" Specify a layout page to use. Use layout "" to disable layout management
<%@ content Mark the location to substitute content in a layout pag
<% Begin esp section containing C code
<%^ global Put esp code at the global level
<%^ start Put esp code at the start of the function
<%^ end Put esp code at the end of the function
<%= Begin esp section containing an expression to evaluate and substitute
<%= [%fmt] Begin a formatted expression to evaluate and substitute. Format is normal printf format.
Use %S for safe HTML escaped output.
%> End esp section
-%> End esp section and trim trailing newline
@@var Substitue the value of a variable. Var can also be simple expressions (without spaces)
@#field Lookup the current record for the value of the field.
*/
char *espBuildScript(HttpRoute *route, cchar *page, cchar *path, cchar *cacheName, cchar *layout, char **err)
{
EspParse parse;
char *control, *incBuf, *incText, *global, *token, *body, *where;
char *rest, *start, *end, *include, *line, *fmt, *layoutPage, *layoutBuf;
ssize len;
int tid;
mprAssert(page);
body = start = end = global = "";
*err = 0;
memset(&parse, 0, sizeof(parse));
parse.data = (char*) page;
parse.next = parse.data;
if ((parse.token = mprCreateBuf(-1, -1)) == 0) {
return 0;
}
tid = getEspToken(&parse);
while (tid != ESP_TOK_EOF) {
token = mprGetBufStart(parse.token);
#if FUTURE
if (parse.lineNumber != lastLine) {
body = sfmt("\n# %d \"%s\"\n", parse.lineNumber, path);
}
#endif
switch (tid) {
case ESP_TOK_CODE:
if (*token == '^') {
for (token++; *token && isspace((int) *token); token++) ;
where = stok(token, " \t\r\n", &rest);
if (rest == 0) {
;
} else if (scmp(where, "global") == 0) {
global = sjoin(global, rest, NULL);
} else if (scmp(where, "start") == 0) {
if (*start == '\0') {
start = " ";
}
start = sjoin(start, rest, NULL);
} else if (scmp(where, "end") == 0) {
if (*end == '\0') {
end = " ";
}
end = sjoin(end, rest, NULL);
}
} else {
body = sjoin(body, token, NULL);
}
break;
case ESP_TOK_CONTROL:
/* NOTE: layout parsing not supported */
control = stok(token, " \t\r\n", &token);
if (scmp(control, "content") == 0) {
body = sjoin(body, CONTENT_MARKER, NULL);
} else if (scmp(control, "include") == 0) {
if (token == 0) {
token = "";
}
token = strim(token, " \t\r\n\"", MPR_TRIM_BOTH);
token = mprNormalizePath(token);
if (token[0] == '/') {
include = sclone(token);
} else {
include = mprJoinPath(mprGetPathDir(path), token);
}
if ((incText = mprReadPathContents(include, &len)) == 0) {
*err = sfmt("Can't read include file: %s", include);
return 0;
}
/* Recurse and process the include script */
incBuf = 0;
if ((incBuf = espBuildScript(route, incText, include, NULL, NULL, err)) == 0) {
return 0;
}
body = sjoin(body, incBuf, NULL);
} else if (scmp(control, "layout") == 0) {
token = strim(token, " \t\r\n\"", MPR_TRIM_BOTH);
if (*token == '\0') {
layout = 0;
} else {
token = mprNormalizePath(token);
if (token[0] == '/') {
layout = sclone(token);
} else {
layout = mprJoinPath(mprGetPathDir(path), token);
}
if (!mprPathExists(layout, F_OK)) {
*err = sfmt("Can't access layout page %s", layout);
return 0;
}
}
} else {
*err = sfmt("Unknown control %s at line %d", control, parse.lineNumber);
return 0;
}
break;
case ESP_TOK_ERR:
return 0;
case ESP_TOK_EXPR:
/* <%= expr %> */
if (*token == '%') {
fmt = stok(token, ": \t\r\n", &token);
if (token == 0) {
token = "";
}
} else {
fmt = "%s";
}
token = strim(token, " \t\r\n;", MPR_TRIM_BOTH);
body = sjoin(body, " espRender(conn, \"", fmt, "\", ", token, ");\n", NULL);
break;
case ESP_TOK_FIELD:
/* @#field */
token = strim(token, " \t\r\n;", MPR_TRIM_BOTH);
body = sjoin(body, " espRender(conn, getField(\"", token, "\"));\n", NULL);
break;
case ESP_TOK_LITERAL:
line = joinLine(token, &len);
body = sfmt("%s espRenderBlock(conn, \"%s\", %d);\n", body, line, len);
break;
case ESP_TOK_VAR:
/* @@var */
token = strim(token, " \t\r\n;", MPR_TRIM_BOTH);
/* espRenderParam uses espRenderSafeString */
body = sjoin(body, " espRenderParam(conn, \"", token, "\");\n", NULL);
break;
default:
return 0;
}
tid = getEspToken(&parse);
}
if (cacheName) {
/*
CacheName will only be set for the outermost invocation
*/
if (layout && mprPathExists(layout, R_OK)) {
if ((layoutPage = mprReadPathContents(layout, &len)) == 0) {
*err = sfmt("Can't read layout page: %s", layout);
return 0;
}
layoutBuf = 0;
if ((layoutBuf = espBuildScript(route, layoutPage, layout, NULL, NULL, err)) == 0) {
return 0;
}
body = sreplace(layoutBuf, CONTENT_MARKER, body);
}
if (start && start[slen(start) - 1] != '\n') {
start = sjoin(start, "\n", NULL);
}
if (end && end[slen(end) - 1] != '\n') {
end = sjoin(end, "\n", NULL);
}
mprAssert(slen(path) > slen(route->dir));
mprAssert(sncmp(path, route->dir, slen(route->dir)) == 0);
if (sncmp(path, route->dir, slen(route->dir)) == 0) {
path = &path[slen(route->dir) + 1];
}
body = sfmt(\
"/*\n Generated from %s\n */\n"\
"#include \"esp-app.h\"\n"\
"%s\n"\
"static void %s(HttpConn *conn) {\n"\
"%s%s%s"\
"}\n\n"\
"%s int esp_%s(HttpRoute *route, MprModule *module) {\n"\
" espDefineView(route, \"%s\", %s);\n"\
" return 0;\n"\
"}\n",
path, global, cacheName, start, body, end, ESP_EXPORT_STRING, cacheName, mprGetPortablePath(path), cacheName);
mprLog(6, "Create ESP script: \n%s\n", body);
}
return body;
}
