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|
BEGIN {
# The only time we're interested in multiple fields is when
# parsing the review data drawer.
FS="|";
now = strftime("%FT%TZ", systime(), 1);
fc_tag = ":" or_default(fc_tag, "fc") ":";
suspended_tag = ":" or_default(suspended_tag, "suspended") ":";
review_data_drawer = ":" or_default(review_data_drawer, "REVIEW_DATA") ":";
type_property = or_default(type_property, "FC_TYPE");
cloze_type_property = or_default(cloze_type_property, "FC_CLOZE_TYPE");
created_property = or_default(created_property, "FC_CREATED");
# Small state machine to make sure cards are in the correct format
state = 0;
state_file = 0;
state_card = 1;
state_properties = 2;
state_properties_done = 3;
state_review_data = 4;
state_review_data_done = 5;
print "(";
}
## File Parsing
BEGINFILE {
# Reset filetags
delete parent_tags;
file_title = "";
parent_tags[0] = "";
state = state_file;
print " (" \
":path " escape_string(FILENAME) \
" :cards (";
}
ENDFILE {
print ") :title " (file_title ? escape_string(file_title) : "nil") ")";
}
## File Tags
match($0, /^#\+FILETAGS:[ \t]+(.*)/, a) {
# Combine tags to handle multiple FILETAGS lines
parent_tags[0] = combine_tags(a[1], parent_tags[0]);
next;
}
## File Title
match($0, /^#\+TITLE:[ \t]+(.*)/, a) {
# Combine tags to handle multiple FILETAGS lines
file_title = a[1]
next;
}
## Heading Parsing
match($0, /^(\*+)[ \t]+(.*)$/, a) {
level = length(a[1]);
title = a[2];
tags = "";
# tag re based on org-tag-re
# this only guarantees that there is at least one tab/space
# between the headline text and the tags.
# TODO: Do this in a single match
if (match(title, /^(.*)[ \t]+(:([[:alnum:]_@#%]+:)+)$/, b) != 0) {
title = b[1];
# remove trailing tabs/spaces
sub(/[ \t]*$/, "", title);
tags = b[2];
}
parent_tags[level] = tags;
id = "none";
if (tags ~ fc_tag) {
state = state_card;
suspended = (tags ~ suspended_tag);
}
next;
}
## Drawer Parsing
/:PROPERTIES:/ {
if (state == state_card) {
state = state_properties;
delete properties;
}
next;
}
$0 ~ review_data_drawer {
# Make sure the review data comes after the property drawer
if (state == state_properties_done) {
delete review_data;
review_index = 1;
state = state_review_data;
}
next;
}
/:END:/ {
if (state == state_properties) {
state = state_properties_done;
} else if (state == state_review_data) {
state = state_review_data_done;
# Card header
inherited_tags = "";
for (i = 0; i < level; i++) {
inherited_tags = combine_tags(inherited_tags, parent_tags[i]);
}
local_tags = parent_tags[level];
cloze_type = ""
if (cloze_type_property in properties)
cloze_type = " :cloze-type " properties[cloze_type_property]
print " (" \
":id " escape_string(properties["ID"]) \
" :title " escape_string(title) \
" :type " properties[type_property] \
cloze_type \
" :created " parse_time(properties[created_property]) \
" :suspended " (suspended ? "t" : "nil") \
" :inherited-tags " escape_string(inherited_tags) \
" :local-tags " escape_string(local_tags) \
" :positions (";
# Card positions
for (i = 1; i < review_index; i++) {
print " (" \
":position " escape_string(review_data[i]["position"]) \
" :ease " review_data[i]["ease"] \
" :box " review_data[i]["box"] \
" :interval " review_data[i]["interval"] \
" :due " parse_time(review_data[i]["due"]) \
")"
}
print " ))";
}
next;
}
## Property Parsing
(state == state_properties) && match($0, /^[ \t]*:([a-zA-Z0-9_]+):[ \t]*(.+)$/, a) {
properties[a[1]] = trim_surrounding(a[2]);
next;
}
## Review data parsing
# TODO: Explicit match, to check for broken drawers
#
# Positions are collected in an array first,
# in case the review drawer is broken.
(state == state_review_data) && /^\|.*\|$/ {
# check NF to skip the |--+--| table separator
# match on $2 to skip the table header
if (NF == 7 && $2 !~ "position") {
review_data[review_index]["position"] = trim($2);
review_data[review_index]["ease"] = trim($3);
review_data[review_index]["box"] = trim($4);
review_data[review_index]["interval"] = trim($5);
review_data[review_index]["due"] = trim_surrounding($6);
review_index += 1;
}
next;
}
END {
print ")";
}
|
