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editorial improvements to Initial Letter section
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(I'm submitting this directly, to save time. If there are issues, i can revert it.)
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r12a committed Apr 24, 2017
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Expand Up @@ -313,7 +313,7 @@ <h4>Unicode Code charts – Devanagari &amp; Devanagari Extended</h4>
</section>
</section>
<section id="h_indic_orthographic_syllable_boundaries">
<h2>Indic orthographic syllable boundaries (ABNF Valid segmentation-Proposed solution for layout issues in Indian languages)</h2>
<h2>Indic orthographic syllable boundaries</h2>

<section id="h_need_for_abnf_valid_segmentation">
<h3>Need for ABNF valid segmentation</h3>
Expand Down Expand Up @@ -968,17 +968,18 @@ <h3>Initial letter styling</h3>
<section id="h_selecting_initial_letters">
<h4>Selecting initial letters</h4>

<p>Initial letters in Indic scripts must be selected on the basis of orthographic syllables, rather than individual letter forms (see an example at the end of section 3, Text segmentation).A detailed definition of Indic syllables can be found in section 2, Indic Syllable boundaries.In Indian languages the size of the Initial Letter is determined by the number of the lines between top line of the syllable and lowest bit in the orthographic Indic syllable cluster where subjoined consonant and other diacritics appears.</p></section>
<p>Initial letters in Indic scripts must be selected on the basis of orthographic syllables, rather than individual letter forms (see an example at the end of <a href="#h_text_segmentation"></a>). A detailed definition of Indic syllables can be found in <a href="#h_indic_orthographic_syllable_boundaries"></a>. In Indian languages the size of the initial letter is determined by the number of the lines between the top line of the syllable and the lowest bit in the orthographic Indic syllable cluster where subjoined consonant and other diacritics appear.</p></section>

<section id="h_typical_drop_initial_usage_in_indic_scripts">
<h4>Typical drop initial usage in Indic scripts</h4>
<p>Most of the Indic drop initial letters in magazines and newspapers use 2 to 4 line drops. Some examples are shown below.</p>
<figure> <img src="images/dropcap-example2.png" alt="examples of indic initial letters" />
<figcaption>Examples of Indic Initial letters</figcaption>
</figure>
<p>The Sunken and raised Initial letter are not preffered in Indian languages.In examples of this kind, reference points on the drop cap must align precisely with reference points in the text. In Indic scripts the top reference point is the hanging base line for those scripts that have one, and the bottom alignment point is the text after-edge.</p>
<p>Initial letter wrap property is not applicable for Indian languages.No contour-filling is required in Indian languages.</p>
<p>Alignment of the top line of the non-highlighted characters is at the top of the thicker top line of the initial letter is commonly used in India.In some examples top lines of the initial letter and the following letters don't touch. This is due to variable technology/formats used by the publishers. It is preferred that both the top lines of Initial letter and neighbouring text should touch.Here are some additional examples of initial highlighted letter and drop letter based on the Indic syllable definition.</p>
<p>The <a href="https://www.w3.org/TR/dpub-latinreq/#raised-caps-and-sunken-caps">sunken and raised</a> initial letter are not preferred in Indian languages. In examples of this kind, reference points on the drop cap must align precisely with reference points in the text. In Indic scripts the top reference point is the hanging base line for those scripts that have one, and the bottom alignment point is the text after-edge.</p>
<p>Initial letter wrap property is not applicable for Indian languages. No contour-filling is required in Indian languages.</p>
<p>Alignment of the top line of the non-highlighted characters at the top of the thicker top line of the initial letter is common in India. In some examples the top lines of the initial letter and the following letters don't touch. This is due to variable technology/formats used by the publishers. It is preferred that both the top lines of Initial letter and neighbouring text should touch.</p>
<p>Here are some additional examples of initial highlighted letter and drop letter based on the Indic syllable definition.</p>
<p class="exampleList"><img src="images/I-letter1.png" alt="Bengali example" /></p>
<p class="exampleList"><img src="images/I-letter2.png" alt="Punjabi example" /></p>
<p class="exampleList"><img src="images/I-letter3.png" alt="Tamil example"/></p>
Expand All @@ -987,27 +988,26 @@ <h4>Typical drop initial usage in Indic scripts</h4>
<p class="exampleList"><img src="images/I-letter6.png" alt="Marathi example" width="555" height="255"/></p>


<p style="clear:both;">The remainder of this section describes the detailed rules for placement and alignment of hindi characters with initial letter styling relative to the adjacent text.</p>
<p style="clear:both;">The remainder of this section describes the detailed rules for placement and alignment of characters with initial letter styling relative to the adjacent text.</p>
</section>

<section id="h_indic_scripts_with_hanging_baseline">
<h4>Alignment of Initial letter of Indic scripts with hanging baseline</h4>
<p>Indian languages which use hanging baseline such as Hindi, Bengali, Gujarati, Marathi, Punjabi etc.
The part from the hanging baseline and the ascent of the Initial letter may follow the following mechanism :</p>
The part from the hanging baseline and the ascent of the Initial letter may follow the following mechanism, where n = h/2:</p>
<figure><img src="images/Hbaseline-rule.png" alt="Rule for hanging baseline">
<figcaption>Rule of Indic script with hanging baseline</figcaption>
</figure>
<p>Where n=h/2</p>
<p>In Indic scripts that have hanging baseline, the top alignment point is the hanging baseline, and the bottom alignment point is the text-after-edge and both the Initial letter and first line of text should be same aligned.</p>
<p>In Indic scripts that have a hanging baseline, the top alignment point is the hanging baseline, and the bottom alignment point is the text-after-edge, and the hanging baselines of both the initial letter and first line of text should be aligned.</p>
</section>

<section id="h_scripts_without_hanging_baseline">
<h4>Scripts that don't have hanging baseline such as Kannada, Tamil, Telugu, Malayalam , Odia etc</h4>

<p>The publishers in India commonly used following rules for such scripts :</p>
<p>Publishers in India commonly used the following rules for such scripts:</p>
<ul>
<li>The height of the Initial letter is based on the Indic orthographic syllable described in section 2.</li>
<li>Ascent of the first non highlighted line is equal t o the median/mean line of the Initial letter as shown below :</li>
<li>The height of the initial letter is based on the Indic orthographic syllable described in <a href="#h_indic_orthographic_syllable_boundaries"></a>.</li>
<li>Ascent of the first non-highlighted line is equal to the median/mean line of the initial letter as shown below :</li>
</ul>
<img src="images/dropcap-south.png" alt="rule for South Indian languages" />
<p>Based on above observations the general rule for South Indian languages Indian languages scripts will be :</p>
Expand All @@ -1019,9 +1019,9 @@ <h4>Scripts that don't have hanging baseline such as Kannada, Tamil, Telugu, Mal

<section id="h_initial_letter_box_formatting">
<h4>Initial Letter box formatting in Indian languages</h4>
<p>The Indian publishers commonly used different height of the boxes and sizes of the characters. But it is proposed that the syllable with in the box is centre-aligned with reference to box parameters as shown in the figure below :</p>
<p> When initial letters are highlighted within a box, Indian publishers commonly use different heights for the boxes and sizes for the characters. It is proposed that the syllable within the box is centre-aligned with reference to the box parameters as shown in the figure below :</p>
<figure> <img src="images/initial-letter-box.png" alt="examples of Indic Initial letters within box" />
<figcaption>Examples of Indic Initial letters within box</figcaption>
<figcaption>Examples of Indic initial letters within a box.</figcaption>
</figure>
</section>
</section>
Expand Down Expand Up @@ -1285,7 +1285,7 @@ <h3>Collation</h3>


<section class="appendix" id="app-a">
<h2>Contributors</h2>
<h2>Contributors</h2>
<table class="tab-format">
<tr>
<td><strong>Serial No.</strong></td>
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