Landon Curt Noll
0bc6c3e413
We quasi-canonicalized markdown links to FAQ entries. **IMPORTANT NOTE**: This is a useful step in completing issue #2417. This commit is consistent with the top level TODO comment requirements. Nevertheless, this changes made by this commit needs to be examined and in some cases improved. A link to an FAQ entry is of the form: ``` FAQ on "[the link text](....faq.html#string)" FAQ on "[the link text](....faq.html#string)" ``` The "FAQ" is at the start of the line, or in rare cases is preceded only by whitespace. The reference to the FAQ starts outside of the markdown link with the string **FAQ ON "**. After the markdown link is a **"** followed by either the end of line or a single punctuation character such as a period or comma. We reduced the size of "the link text" that refer to an FAQ to at most 3 words. In some cases the sentence and/or text surrounding the markdown link to a FAQ may need to be further adjusted to better accommodate this new style. **IMPORTANT NOTE**: References to a FAQ entry are on a separate line. p.s. When linking to the `faq.html` file itself, we use markdown of the form "`the [IOCCC FAQ](..../faq.html)`" and place the word "the" outside of the "IOCCC FAQ" link text. Given the above system (and because references to an FAQ entry is on a separate line), the following command shows links to FAQ entries, sorted by FAQ entry "link #name" so that one may evaluate the way a given FAQ entry is referenced: ```sh find * -name '*.md' -print0 | xargs0 grep -E '^[[:space:]]*FAQ on "' | sed -e 's/^\([^:]*\):\( *FAQ on "[^#]*\)#\([^)]*\)\()".*\)$/#\3\t\1\t\2#\3\4/' | sort ``` The above command shows the value of consistency when it comes to FAQ references. **NOTE**: There are a few differences on how a given FAQ is references. That is probably OK as there is NOT an "total mandate" that all references to a given FAQ must have the same "link text" for example. On the other hand if references to a given FAQ can be identical, that might be helpful. We are certain that in some contexts the "link text" might need to change. Should we decide to change the way FAQ are referenced, we will be able to modify identify and modify them with greater ease.' Examine the changes made by this commit and adjust and/or improve as needed. Performed `make www` to accomplish the above and to test under macOS.
To build:
This entry requires SDL. See FAQ on "SDL1 and SDL2" for information on how to install it if you haven't already.
If you have SDL installed:
make
To use:
./jetro
Judges' remarks:
We have seen entries with SDL graphics in the past, now it's time for SDL sound. This entry can even be run on a computer without a sound card with an appropriate setting of an environment variable - for that you'll have to dig into the SDL documentation.
Can you figure out how the notes are encoded and program a different melody?
Author's remarks:
To compile the entry you need SDL library, which is used only for audio
output. To run the entry make sure you have audio output available. The entry
plays 22KHz 16 bit mono music with a small softsynth. When the music plays,
you can stop the application by pressing enter, as the code will just wait
with one call to getchar() before it quits.